1、MTLITARY SPECIFICATION VACUUM-AIR-NITROGEN DISTRIBmON SYSTEM , 4. This specification has been approved by the Naval Ordnance Systems Comman, Department of the Navy t . 1, SCOPE ., Iw.4 Scope. * of a Vacuum-Air-Nitrogen Distribution System, Naval Ordnance Systems Comnd Drawing i874091 (LD 620161), al
2、so referred to herein as the “VAND System“ or “system“. The VAND system provides pneumatic testing facilities for advance underseas weapons. It is also capable of control- ling the nitrogen supply for those weapons which are to be filled with an inert gas. This specification states the requirements
3、for the procure- The VAND System is of one ty-pe and one class. (See 6.1.2. ) 2. APPLICABU DOCUMENTS 2.1 The following documents of the issue in effect on the date of invitation for bids or request for proposal form a part of this specifi- cation to the extent specified herein. SPECIFICATIONS FEDERA
4、L PPP-B-601 Boxes, Wood, Cleated, Plywood PPP-B-621 Boxes, Wood, Nailed and Lock-Corner MILITARY MTL-P- 116 Preservation, Methods of MIL-A-907 Antiseize Compound, High Temperature MIL-A- 862 5 Anodic Coatings for Aluminum and Aluminum Alloys .s MIL -H-879 5 Hose; Aircraft, Hydraulic, Pneumatic Fuel
5、and Oil Resistant .* Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ MIL-V-8246b 13 = 9799906 043179 2 MIL-V-824.66 OS 1 4 ,* MIL-T-18404 STANDARDS MILITARY MIL- sm - i05 Electronics and Electrical Equipment and Associated Spare Parts; Preparation
6、for Delivery of Torpedoes , Environmental Requirements ; General Specification for Sampling Proceduxes and Tables for Inspec tion by Attributes fl MIL-STD- 129 Marking for Shipment and Storage DRAWINGS NAVAL ORDNANCE: SYSI%MS COMMAND I;D 620161 Vacuum-Air-Nitrogen Distribution System Dwg 1874091 Vac
7、uum-Air-Nitrogen Distribution System NAVAL SHIPS SYSTEMS COMMAND Dwg 10-T-2145 Light Weight Shock Testing Machine PUBLICAFLONS NAVAI; ORDNANCE SYSTEMS COMMAND m-11 os 6341 Design and Test of Packaging, Packing, Shipping and Handling Equipment for Weapon System Components Miscellaneous General Ordnan
8、ce Design Requirements (Copies of specifications, standards, drawings, and publications required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer. ) 2.2 Other publications. The following document
9、s form a part of this specification to the extent specified herein. the issue in effect on date of invitation for bids or request for proposal shall apply. Unless otherwise indicated 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1 - flIL-V-Z46b 1
10、3 m 9777706 0433770 9 m ME-V-82466 (OS) NATIONAL BUEAU OF STANDARDS PUBLICATION Handbook H28 Screw-Thread Standards for Federal Services (Application for copies should be addressed to the Superintendent of Documents, Government Printing Office, Washington, D. C. 20360. ) 3. REQUIREMENTS 3.1 Preprodu
11、ction samples. Unless otherwise specified in the con- tract or order, preproduction sqnples of the VAND System shall be manu- factured using the methods and procedures proposed for production. sample will be tested as specified in Section 4 and is for the purpose of determining, prior to production,
12、 that the contractors production methods are capable of yielding items that comply with the technical requirements of the contract. The 3.2 General requirements 3.2.1 Materials. Unless otherwise specified in the contract, requisi- tion, or order, all materials and purchased parts entering into the f
13、inal assembly of the VAND System shall conform strictly to the detailed requirements indicated on the drawings and specifications listed in LD 620161. 3.2.2 Finishes, coatings, construction, and dimensions. Finishes, coatings, construction, and dimensions for the VAND System shall be strictby- in ac
14、cordance with the applicable drawings, specifications, and publications listed in I;D 620161. 3.2.3 Moisture, fungus, and corrosion. The VAND Syctem shall be ren- dered moisture, fungus, and corrosion resistant in accordance with the requirements of OS 6341. 3.2.4 Marking. Marking of assemblies, sub
15、assemblies, and parts shall 3.2.5 Interchameabiiitg. Component parts of assembled units (unless be in accordance with the applicable drawings listed in LD 620161. otherwise specified on applicable drawings) fabrica- transportation. The system, after being subjected to the tests specified in 4.4.1.5,
16、 shall chow no damage and shall meet all the requirements of Section 3. 3.4.2 Shock 3.4.2.1 Operating and nonoperating. With the Vacuum-Air-Nitrogen Distribution System mounted in a manner to sbmulate its service installa- tion, it shall be subjected to three blows in each of the three principal axe
17、s (see 4.4.2). all performance requirements and product characteristics of this specification. Thereafter the system shall show no damage and meet 3.4.2.2 Shock; transportation, storage, and handling. The system, after being subjected to the test specified in 4.4.2.2, shall show no damage and shall
18、meet all the requirements of Section 3. 3.4.3 Temperature and humidity. The Vacuum-Air-Nitrogen Distribution System shall be subjected to temperatures of 77 degrees F (with a humidity of up to 95 percent relative maximum), 32 degrees F, and i3i degrees F (see 4.4.3) and meet the performance requirem
19、ents and product characteristics of this spec if ication. Thereafter the system shall show no corrosion or damage 3.4.4 Tropical environment. The Vacuum-Air-Nitrogen Distribution System shall be capable of meeting all the performance requirements and product characteristics of this specification aft
20、er being subjected to the tropical environment test of 4.6.4. 3.4.5 Storage life. The Vacuum-Air-Nitrogen Distribution System shall be capable of being stored for a period of at least five years when packed in accordance with Method II of MIL-P-U under temperature and humidity conditions as follows.
21、 3.4.5.1 Temperature: 3.4.5.2 Humidity: Up to 95 percent reQtive maximum. 3.5 CleanuE. Minus 65 degrees F to plus i60 degrees F. Prior to and after final assembly all parts, components, and the assembly shall be thoroughly cleaned of loose, spattered, or excess solder, metal chips, and other foreign
22、 matter. Burrs and sharp edges as well as rosin flash shall be removed. 3.8 Workmanship. The equipment, including all parts and accessories, shallbe constructed and finished in a manner to ensure compliance with all requirements of this specification. paid to neatness and thoroughness of soldering,
23、wiring, impregnation of Particular attention shall be * 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-coils, marking of parts and assemblies, plating, riveting, machine screw assemblies, welding, brazing, and freedom of parts from burrs and sharp
24、 edges. The standards of workmanship exhibited in any approved preproduc- tion sample, subject to any qualification stated in the Governments notice of approval, shall be determinative of the requirements of the contract relative to worlaaanship insofar as not specifically covered by applicable spec
25、ifications. 4. QUALITY ASSWm PROVISIONS 4.1 Responsibility for inspection, Unless otherwise specified in the contract or purchase order, the supplier is responsible for the perform- ance of all inspection requirements as specified herein. Except as otherwise specified, the supplier may utilize his o
26、wn facilities or any comercial laboratory acceptable to the Government. The Government re- serves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to ensure that supplies and services conform to prescribed requirements. 4.2 Classi
27、fication of insp-ections. Inspection of the VAND System shall be classified as follows: a. Preproduction inspection (paragraph 4.4) b. c. Acceptance inspection (paragraph 4.5) Periodic production inspection (paragraph 4.4) 4.3 Sampling. Unless otherwise specified, and when applicable, the sampling p
28、lans and procedures used by the Government inspector in the determination of the acceptability of products submitted by a supplier for Government inspection, shall be in accordance with the provisions set forth in ML-STD-lO5. 4.3.1 Preproduction sample. A preproduction sample of three VAND Systems m
29、anufactured in accordance with 3.2 shallbe subjected to the preproduction tests detailed in 4.4 at an activity designated by the procuring activity. Acceptance of the preproduction sample shall be based on no defects in the sample. Further production of the system by the supplier, prior to the appro
30、val of the preproduction sample, shall be at the suppliers risk. with requirements shall be cause for rejection of the sample and its resubmission, as determined by the procuring activity. . 4.3.2 Periodic production samples. From each succeeding lot or grand 10% of one hundred or less, a random sam
31、ple of three Vacuum-Air-Nitrogen Distribution Systems will be selected by the Government inspector for submission to a Naval Ordnance Systems Command assigned activity to Failure of the preproduction sample to comply 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
32、nse from IHS-,-,-MIL-V-824bb 23 7777706 0432774 b MIL-V-82466 (OS) determine compliance of the samples with the requirements of the contract, specifications, and drawings. factory if it meets all specifications and pertinent drawing requirements, and withstands the tests specified in 4.4 and 4.5 inc
33、lusive. a periodic production sample to comply with requirements will result in rejection of the lot and cessation of production, as determined by the procuring activity. The VAND System shall be considered satis- Failure of 4.3.2.1 Lot size. As applied to Government inspection of units of product,
34、the term “lot“ shall mean “inspection lot“, i.e., a collection Of units of product submitted by a supplier for Government inspection. Unless otherwise specified, the nmber of units of product in “inspection lots“ will be as determined by the Government inspector and may differ from the quantity desi
35、gnated in the contract or order as a lot for pro- duction, shipment, or other purpose. 4.3.3 Acceptance sampliw. The tests and examinations detailed in 4.5 shall be conducted on each VAND System to be delivered; therefore, there shall be no sampling for acceptance. Defective units shall be rejected.
36、 4.4 Preproduction an periodic production inspection. The preproduction and periodic production samples, after satisfactorily passing the accept- ance inspections detailed in 4.5, shall be subjected to the following tests and examinations. Failure to meet any requirement specified herein shall be co
37、nsidered cause for rejection of the lot represented and units tested. 4.4.1 Vibration. The Vacuum-Air-Nitrogen Distribution System, mounted as specified in 3.4.1.1, shall be subjected to the following tests: 4.4.1.1 Test 1. The equipment shall be vibrated with a frequency varying between 10 and 33 c
38、ycles per second at a total excursion of 0.06 plus or minus 0.006 inch. The frequency shall vary uniformly from 10 to 33 cycles per second and return to 10 cycles per second in approximately one-half minute. 4.4.1.2 Test 2. The equipment shall be vibrated with a frequency varying between 10 and 55 c
39、ycles per second at a total excursion of 0.03 plus or minus 0.006 inch. “he frequency shall vary uniformly from LO to 55 cycles per second and return to 10 cycles per second in approximately one minute. NOTE: Application of vibration specified in the above two tests shall be in each of the three maj
40、or axes for a period of fifteen minutes each. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-B2qb6 13 9999906 0433995 8 I MIL-V-82466 (OS) 8 4.4.1.3 Fixed frequency vibration. The equipment shall then be vibrated for a period of three minute
41、s at each of the four most severe resonant frequencies at the amplitude specified above and in a plane observed to give the most severe reaction. 4.4.1.4 The equipment shall be inspected to ascertain that no fixed parts have become loose or damaged. to demonstrate that the performance required in th
42、is specification is maintained. !The equipment shall then be operated 4.4. i. 5 Vibration; translsortation. The system, packaged and packed as specified in Section 5, shall be vibration tested as specified in Weapons Requirement WR-11. 4.4.2 Shock test. The Vacuum-Air-Nitrogen Distribution System sh
43、all be tested in accordance with the following procedure: 4.4.2.1 Mount the system on a shock testing machine (NSSC Drawing LO-T-2145) as specified in 3.4.2.1, and subject it to a total of nine blows. principal axes of Panel 1874290. Hammer drop heights for the back blow and side blow shall be one f
44、oot, two feet, and three feet. For the top blow, the height of hammer drop shall be two feet, three feet, and four feet. ance with the requirements of this specification. Three blows shall be applied parallel to each of the three After each blow, the panel shall continue to perform in accord- 4.4.2.
45、2 Shock; transportation, storage, and handling. The system packaged and packed as specified in Section 5, shall be subjected to the appropriate shock isolation tests specified in Weapons Requirements WR-11. 4.4.3 Temperature and humidity tests. The VAND System shall be sub- jected to the following t
46、emperature and humidity tests: 4.4.3.1 With the equipment stabilized at an ambient temperature of 77 degrees F, and with a humidity of up to 95 percent relative maximum, the system shall be operated for a twenty-minute period. of this period the Vacuum-Air-Nitrogen Distribution System shall meet the
47、 performance and other requirements specified in this specification. At the conclusion 4.4.3.2 The ambient temperature of the equipment shall be lowered to 32 degrees F and sufficient time for temperature stabilization shall be allowed. At the conclusion of this period all controls shall be readily
48、manipulated and the Vacuum-Air-Nitrogen Distribution System shall meet the performance and other requirements specified in this specification. 4.4.3.3 The ambient temperature shall be raised to l3i degrees F and sufficient time for temperature stabilization shall be allowed. At the conclusion of thi
49、s period all controls shall be readily manipulated and VAND System shall meet the performance and other requirements specified in this specification. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-V-24bb 13 W 7979906 0433796 T I MIL-V-82466 (OS) 4.4.4 Tropical environment. The VAND System, including applicable external connections, shall be placed in a mold chamber in which are maintained a t
