1、I MIL-B-L743A 20 m 777770b 020503b T m m-B-81743A( AS ) 14 June 1973 SUPERSEDING MIL-B-81743( AS) 1 October 1969 MILITARY SPECIFICATION BOY, DAN BW-l/W This specification has been approved by the Naval Air Systems Command, Department of the Navy. 1. SCOPE 1.1 Scope - This specification covers the de
2、sign requirements for one ty-pe of marker buoy for use as an aid to navigation. 2. APPLICABU DOWW *2.l The following documents of the issue in effect on the date of invitation for bids or request for proposal form a part of this specification to the extent specified herein. SPECIFICATIONS Federal “-
3、1-595 PPP-B-601 PPP-B-636 Mil i tary MIL-P- MIL-1-17214 Military . MIL-STD-105 Insulation Tape, Electrical Pressure Sensitive Adhesive, Plastic, General Purpose Boxes, Wood, Cleated-Plywopd Boxes, Shipping,. Fiberboard Preservation, Methods of Indicator Permeability, Low-MIJ (GO-NO GOI Sampling Proc
4、edures and Tables for Inspection by Attributes MIL-STD-129 Marking for Shipment and Storage e Licensed by Information Handling ServicesMIL-B-L743A 20 7777706 0205037 I W ._ . c MIL-B-81743A( AS) Department of the Navy WR-43 DRAWINGS Quality Assurance Provisions, Prepa- ration of Naval Air Yjstems Co
5、man1 *30003-DL167ASlOO Buoy, DAN BNU-l/W Assembly (Copies of specifications, standards, drawings, and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring agency or as directed by the contracting officer.) 3. REQUIREMENTS 3.1 Prep
6、roduction - The marker buoy furnished under this specification shall be a product, samples of which have been tested and passed the prepro- duction tests specified herein. *3.2 Parts and materials - Parts and materials shall be as specified in all Any deviation by drawings and subsidiary documents l
7、isted in 30003-DL167100. the contractor from the use of these specified parts and materials necessarily places both the burden of proof for the acceptability of the change, and the cost associated therewith, upon the contractor. Approval for deviations must be requested from the procuring agency by
8、the contractor and granted by the pro- curing agency prior to submission of equipments for preproduction tests. of parts and material deviations shall not be construed by the contractor to con- stitute a waiver of any other requirement of this specification, or of 30003- 16710). When a requirement o
9、f a referenced document conflicts with a require- ment of this specification, the requirement of this specification shall govern. The contract shall have precedence over this specification. Approval 3.2.1 Magnetic permeability - The magnetic permeability of all corrosion- resistant steel components
10、shall be less than 1.6 when checked with a low-mu magnetic permeability indicator conforming to MIL-1-17214. Steel Institute (AISI) type 304 stainless steel may be replaced by any AISI 300 series stainless steel if its magnetic permeability complies with this require- ment. American Iron and *3.3 De
11、sign and Construction - The equipment shall be manufactured in accordance with the drawings of 30003-DL167AS100 and subsidiary specifications except insofar as errors of omission or commission on the drawings may be incompatible with the requirements of this and related specifications. variations in
12、 the design that provide for improved production techniques, reduced product cost, or improvements in the overall operation may.be allowed. In any Minor 2 Licensed by Information Handling ServicesMIL-B-81743A( AS) case it is a condition of final acceptance that the equipments meet all the perf orman
13、ce requirements of the drawings of 30003-DL167AS100 and such accep- tance test documents as may be applicable. Proposed changes, either to correct drawing discrepancies or for any other reason shall be specifically approved by the procuring agency prior to their incorporation. . *3.4 Operational req
14、uirements - The assembled buoy shall meet the following operational requirements. For the requirements of 3.4.1 through 3.4.6, the direction of the force is along the longitudinal axis of the buoy with the buoy in a horizontal position. Except for buoyance, all values stated herein are as measured i
15、n air with buoy and mooring line in dry condition. apply with air locks items 167AS28-1 and 167128-2 removed. These requirements *3,4.1 Buoy removal force - Maximum force required to remove the buoy, item 167M102, from the protective support, item 167AC130, shall not exceed 3.5 pounds. *3.4.2 Upper
16、tube extension force - Force required to extend and lock upper tube, item i67ASii8, shall not exceed 1.0 pound. *3.4.3 Lower tube extension force - Force required to extend lower tube, item i67ASii6, shall not exceed 1.0 pound. *3.4.4 Lever rotation force - Force on the mooring line required to rota
17、te the lever, item 167106, from its assembled stowed position to the position determined by the free length of the spring, item 167ASi46, shall not exceed 1.5 pounds. 3.4.5 Ratchet wind-up force - Maximum force on the mooring line required to actuate the compensator mechanism (ratchet wind-up) one n
18、otch shall be 2.0 pounds. “3.4.6 Reel free-wheeling force - Force on the mooring line required for com- pensator mechanism reel to free-wheel shall be a minimum of 4.0 pounds and a max- imum of 5 pounds. *3.4.7 Compensator mechanism weight - Weight of the compensator mechanism, drawing 1.67101, used
19、 to moor the buoy, shall be a minimum of 1.3 pounds and a maximum of 1.7 pounds. - The anchor weight, item 167M129, shall be between *3.4.9 the anchor weight and.protective support) in tap water shall be between 7.0 and 8.0 pounds. Buoyancy - The net positive buoyancy of the marker buoy (excluding *
20、3.5 Workmanship - The marker buoy shall be constructed and finished in a All parts and materials shall be free from foreign thoroughly workmanlike manner. matter and manufacturing defects which would affect or impair the operation and serviceability of the marker buoy. to insure removal of all sharp
21、 edges. All exposed edges shall be rounded or beveled Fastening devices shall be secure. 3 Licensed by Information Handling ServicesflIL-B-L7LI3A 20 7777706 0205037 5- 4. QUALITY ASSURANCE PFiOVSIONS Jc4.1 Responsibility for inspection - Unless otherwise specified in the con- tract or purchase order
22、, the supplier is responsible for the performance of all tests/inspections as specified herein. supplier may utilize his own facility or any commercial laboratory acceptable to the Government. The Government reserves the right to witness or separately per- form any of the tests/inspections set forth
23、 in this specification where such tests/inspections are deemed necessary to assure that supplies and services con- form to prescribed requirements. Except as otherwise specified, the *4.2 Classification of inspection - The examination and testing of the marker buoy shall be classified as follows: (a
24、) Preproduction inspection (see 4.6). (b) (c) (a) Special tests (see 4.10). Initial production inspection (see 4.8). Quality conformance inspection (see 4.9). *4.3 Test conditions - The ambient temperature and relative humidity that prevails during the measurement of the forces, weights and buoyancy
25、 as required by 3.4 shall be within the range from 32 to 90 degrees Fahrenheit and from 45 to 99 percent relative humidity. recorded and submitted for each test of each buoy tested. The temperature and relative humidity shall be *4.4 Test equipment and inspection facilities - Test equipment and insp
26、ection facilities shall be of sufficient accuracy and quality to permit performance of the required tests and inspections. with the operational requirements specified in 3.4 shall indicate the true values to an accuracy of 5 percent of the value measured. The contractor shall estab- lish adequate te
27、st equipment and the calibration thereof, each to the satisfaction of the Government. Measuring equipment used to verify compliance *4.5 Presubmission Testing - No item, part or complete equipment shall be submitted or resubmitted by the contractor until it has been previously tested and inspected b
28、y the contractor and found to comply, to the best of his know- ledge and belief, with all applicable requirements. *4.6 Preproduction inspection - Preproduction inspection is that inspection accomplished on units selected as specified in 4.6.2 for the purpose of deter- mining that production methods
29、 and procedures utilized are capable of producing marker buoys which comply with the requirements specified herein. *4.6.i Preproduction inspec-Lion data - The testing activity shall submit all data collected in conducting these inspections to the procuring agency for review and approval *4.6.2 Prep
30、roduction sample - Unless otherwise specified (see 6.2), for each contract or order, 50 complete marker buoys shall be manufactured using the same methods and procedures proposed for production. be essentially a model of the product that the contractor will subsequently Each preproduction unit shall
31、 4 Licensed by Information Handling ServicesMIL-B-81743A( AS) produce to fulfill the contract. the contract, and prior to submission of any complete units for final acceptance, the contractor shall furnish preproduction units as specified in 4.6.4. contractor shall record and submit with the preprod
32、uction units the data resulting from his tests of the preproduction units, by the agency concerned shall not r.elieve the contractor of the obligation to supply equipment conforming to this specification. duction units from the approved preproduction units shall require the written approval of the a
33、gency concerned, to the procuring agency at least 30 days prior to inspection, furnishing the date that the production samples will be provided. As soon as is practicable after the award of The Approval of the preproduction units Changes or deviation in pro- The contractor shall forward written noti
34、ce *4.6.3 Scope of Tests - Preproduction tests shall include all tests deemed Preproduction inspection necessary by the procuring agency to determine that the equipment meets all the requirements of this specification and the contract. shall include as a minimum the inspections and tests of 4.7. *4.
35、6.4 Submission of Preproduc-tion Sample - The preproduction sample specified in 4.6.2 shnb-e-delivered 5 pounds. This force shall not “4.7.6 Ratchet Wind-Up Force - Measure the force on the mooring line required to actuate the compensator mechanism (ratchet wind-up) one notch. This force shall not e
36、xceed 2 pounds. “4.7.7 Reel Free-Wheeling Force - Measure the force on the mooring line required for the compensator mechanism to free-wheel. 4.0 and 5.0 pounds. This force shall be between 44.7.8 Compensator Mechanism Weight - Measure the weight of the compensator mechanism, item 167101. This weigh
37、t shall be between 1.3 and 1.7 pounds. “4.7.9 Anchor Weidt - Measure the weight of the anchor weight, item 167A5129. This weight shall be between 15.5 and 16.5 pounds. *4.7.10 Buoyancy - Measure the net positive buoyancy of the unit in tap water excluding the anchor weight, the protective support, a
38、nd the following: above the top of the float, item 167M121, shall not be submerged, (2) the weight of all above the top of the float shall be acting to cause submergence. positive buoyancy shall be between 7.0 and 8.0 pounds. (1) all The net *4.7.11 Conformance to Drawings - Acceptance criteria for
39、verification of characteristics classified on the drawings of 0003-DL67AS100 shall be in accordance with MIL-STD-105, general inspection level II, shall have an AQ,L of 2.5. The major characteristics *4.7.11.1 Classification of Characteristics - Characteristics identified by the symbol (M) on the dr
40、awings of 30003-DL167AS100 are classified as major in accordance with WR-43, number of the characteristic. The number following the classification symbol indicates the serial *4.8 Initial Production Inspection - Ten of the first 30 production equip- ments shall be selected by the Government represen
41、tative and sent at the con- - tractors expense to a testing laboratory designated by the procuring agency for 6 Licensed by Information Handling ServicesMIL-9-L743A 20 m 7777706 0205042 5 m m-B-81743A( AS ) inspection. equipment has been successfully tested and inspected by the contractor. preproduc
42、tion samples shall not be selected for this inspection. The equipmentc shall be selected by the procuring agency after the The U4.8.i Scope of Tests - These equipments may be subjected to any and all tests the procuring agency deems necessary to ensure that the production equipments are equivalent t
43、o the previously approved preproduction samples in design, construction, workmanship, performance, and quality, and that they meet all applicable require- ments. *4.8.2 Accessory Material - In addition to the complete equipments submitted for initial production inspection, the contractor shall also
44、submit such acces- sory material and data necessary to inspect the equipment. *4.8.3 Initial Production Sample Apprcval - Apprcval of the initjal production SarmleS shall be by the procuring agency upcn satisfactory completion cf all tests .- ana inspections. Any deiign, material or performance defe
45、ct made evident dring this inspection shall be corrected by the contractor to the satisfzction cf %,he procuring agency. Failure of the initial production samples to pass any of the tests or inspections shall be cause for deliveries of equipment under the contract to cease until proper corrective ac
46、tion is approved and accomplished. Corrective action shall also be accomplished on equipment previously accepted when requested by the procuring agency. by the procuring agency after testing plete. considered as equipments deliverable under the contract. Disposition of the initial production samples
47、 shall be These samples shall not be *4.9 Quality Conformance Inspection - A random sample of buoys shall be selected by the Government representative from each lot offered to the Government in accordance with MIL-STD-105 at inspection level II. Each sample shall be forwarded for inspection at the c
48、ontractors expense to a testing laboratory designated by the procuring agency. the sample units shall not hc considered as eqiiipments deliverahlc imder the con- tract. Unless otherwise specified in thc contract, *4.9.1 Inspection Lot Size - The lot size of equipments shall not exceed 1 months produ
49、ction and shall be approved by the procuring agency. *4.9.2 Scope of Inspection (minimum) - Examination shall include as a rrinimum, examination 35 accordance with the classification of defects set forth in 4.9.4. Additional Inspection - Inspection shall also include any other tests *4.9.3 deemed necessary by the procuring agency to assure that the equipmerit conforms to all specification and contractmal requirements. more defects shall be rejected. exceeds 6.5 percent of the number of samples selected, the lot represented by the sample shall be rejected. Any
