1、MIL-T-23824A( OS) 9 August 1971 Superseding mL-T-23824( Wep ) 15 JULY 1963 MILITARY SPEGIFICArcION TOWEDO BEACON LIGRC (For Torpedo Mazk 37 Mods O, 2, ami 3) This specification has been approved by the Naval Ordnance Systems Command, Department of the Navy. 1. SCOPE 1.1 This specification establishe
2、s the minimum requirements for the procurement of a Torpedo Beacon Light, NAVOFD Drawing 695202, which is used in the exercise section of the Torpedo Mk 37 Mods O, 2, and 3 to aid in the postrun location ad recovery of the torpedo at the end of a night-time exercise run. and one class. This torpedo
3、beacon light is of one type 2. APPLICABLE DOCUMENTS 2.1 The following specifications, standards, drawings, and publica- tions of the issue in effect on the date of invitation for bids or request for proposal form a part of this specification to he extent specified herein. SPECIFICATIONS Military MIL
4、-P- Preservation Methods of MIL-E-82590 Environmental Requirements and Tests (For Torpedo Mk 37 Components and As seniblies ) Militaxy MIL-m-I29 Marking for shipment and Storage F 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-2382qA 13 - 79
5、79906 0303887 L W MIL-T-23824A( OS) DFAWINGS Naval Ordnance Systems Command NAVORD LD 620156 NAVORD Dwg 695202 (Copies of specifications Shipping (Packing) c oniti on Torpedo Beacon Light Outline Drawing standards, and drawings required by the con- tractors in connection with specific procurement fu
6、nctions should be obtained from the procuring activity or as directed by the contracting officer. ) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. the issue in effect on date of invitation for bids or request for propo- sal shall app
7、ly. Unless otherwise indicated, National Bureau of Standards Publication Handbook 28 Screw Thread Standards for the Federal Services (Application for copies should Be .addressed to the Superintendent of Documents, Government Printing Office, Washington, D. C. 20402. ) 3. R?3QIRESIENTS 3.1 Jkscri2tio
8、n. The torsdo beacon light consists of two main asseniblies: a power pack and a flashhead. 3.1.1 Parer pack. The parer pack is cylindrically shaped, measuring io-3/8 inches long and 4 inches in diameter, and is designed for interior mounting at the lower center of the exercise section of Exercise He
9、ad Mk 64 Mod O. Functionally, the power pack increases the 30 vde input, from the torpedo battery, to a sufficient voltage to operate the flashtube of the flashhead assembly. 3.1.2 Flashhead. Components of the flashhead are assembled within a housing designed for installation in the handhole cover o
10、pening of the torpedo exercise section. When activated at the end of an exercise run, the beacon light flashes on and off at 1-second intervals. The flash- ing light is visible, from a small recovery craft, at a range of approx- imately 6000 yards. 3.2 General requirements a Provided by IHSNot for R
11、esaleNo reproduction or networking permitted without license from IHS-,-,-t . MIL-T-23824A 13 m 9999906 0303888 3 m MIL-T-23824A( OS) 3.2.1 Data required. No data is required by this specification (other than reports accompanying samples submitted for preproduction and periodic production testing),
12、or by applicable documents referenced in Section 2, unless specified in the contract or order (see 6.2). 3.2.2 Preproduction sample. Unless otherwise specified in the contract or order, preproduction samples of the beacon light shall be manufactured using the methods and procedures proposed for the
13、productTon lot. units shall be tested as specified in Section 4 herein .and are for the purpose of determining, prior to starting production, that the contractors production methods are capable of producing beacon lights that comply with These . the technical requirements of the contract. See 4.3.1.
14、 3.2.3 Material. All material and components used in the fa3rication of the torpedo beacon light shall be of a quality that will insure that the torpedo beacon light will =et the performance and environmental require- ments specified herein. 3.2.4 Marking. Mwking of the torpedo beacon light shall be
15、 in accord- ance with NAVORD Dwg 695202. 3.2.5 Design 3.2.5.1 Accessibility. The design of the torpedo beacon light shall provide for the convenient and efficient replacement of the lens and flash- tube of Lhe flashhead assertibly and all power pack components. 3.2.5.2 Polarity. The design of the to
16、rpedo beacon light shall provide for the isolation of all circuits from their packaging topermit operation with systems employing either a positive or negative ground. 3.2.6 Threads. Unless otherwise specified, all threads shall be in accordance with National Bureau of Standards Handbook 128. 3.2.7
17、Conflicting requirements. In the event of conflict between the documents referenced herein and the contents of this Specification, the contents of this specification shall apply. 3.3 Definitions. Definitions applicable to the environmental require- ments of this specification are given in MIL-T-8259
18、0. 3.4 Performance requirements and product characteristics. The torpedo beacon light shall meet the following performance requirements and product characteristics: 3.4.1 Size. The tarpedobeacon light shall meet the dimensional re- quirement= MVO wg 695202. 3 Provided by IHSNot for ResaleNo reproduc
19、tion or networking permitted without license from IHS-,-,-MIL-T-23824A( OS) 3.4.2 Weight. The torpedo beacon light shall weigh 7.5 pounds max- imum. 3.4.3 Polarity reversal. The torpedo beacon light shall not be damaged by polarity reversal at the input terminals. 3.4.4 Power requirements. The torpe
20、do beacon light shall meet the functional requirements of this specification when energized by the following source : Input voltage - 30 volts dc plus or minus 5 volts input power - 6 watts pius or minus 10 percent 3.4.5 Functional .- 3.4.5.1 Flash rate. The torpedo beacon light shall flash at a rat
21、e of 60 plus or minus i5 flashes per minute. 3.4.5.2 Flashtube output. The output of the flashtube shall be not less than 30,000 beam candle power. 3.4.6 Pressure. The lens and surrounding surfaces of the flashhead assembly - 695202) shall be capable of withstanding an external hydrostatic pressure
22、of 550 psig plus or minus 10 psig for a period of30 minutes,wiZhout leakage ox deformation. 3.4.7 aerating life. The torpedo beacon light shall be capable of continual satisfactory operation for a period of 250 hours. 3.5 Environmental requirements. The beacon light shall meet the other applicable r
23、equirements of this specification during or after the tests defined or specified in 4.5. 3.5.1 Vibration. The beacon light shall meet the following vibra- tion requirements: 3.5.1.1 Vibration, nonoperating. The beacon light shall show no damage and shall meet all the performance requirements and pro
24、duct characteristics of this specification after being tested as in 4.5.1.2. I 3.5.1.2 Vibrati,on, - ogerating. The beacon light shall show no dam- age and shall meet all the performance requirements and product characteristics of this specification during and after the test spec- ified in 4.5.1.3.
25、3.5.2 Temperature and humidity L Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-23824A( OS) 3.5.2.1 High temperature and humidity, nonoperating. The beacon light shall show product characteristics of this specification after being tested as in
26、 4.5.2.1. damage and shall meet all the performance requirements and 3.5.2.2 High temperature, operating. The beacon light shall be capable of meeting all the performance requiremnts of this specification while undergoing the test specified in 4.5.2.2. 3.5.2.3 Low temperature, nonoperating. The beac
27、on light shall meet all the performance requirements and product characteristics of this specifica- tion after being tested as in 4.5.2.3. 3.5.2.4 Low temperature, operating. The beacon light shall be capable of meeting all the performance requirements of this specification while undergoing the test
28、 specified in 4.5.2.4. 3.6 Cleanup. Prior to and after final assembly ali parts, conrponents, and the assembly shall be thoroughly cleaned of loose, spattered, or excess solder, metal chips, and other foreign matter. Burrs and sharp edges as well as excessive rosin flash shall be removed. 3.7 Workma
29、nship. The torpedo beacon light, including all parts and accessories, shall be constructed and finished in a manner to assure com- pliance with all requirements of this specification. Particular attention shall be paid to neatness and thoroughness of soldering, wiring, impreg- nation of coils, marki
30、ng of parts and assemblies, plating, painting, riv- eting, machine screw assemblage, welding, brazing, and freedom of parts from burrs and sharp edges. tion sample will be evaluated to determine acceptability. The approved standards of workmanship will thereby become a minimum production require- me
31、nt for all units offered for acceptance. The workmanship exhibited in the preproduc- 4. QUALITY ASSLTRANCE 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 s
32、pecified herein. Except as other- wise specified in the contract or order, the supplier may use his own or any other facilities suitable for the performance of the inspection require- ments specified herein, unless disapproved by the Government. The Govern- ment reserves the right to perform any of
33、the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.2 Classification of inspections. Inspection of the beacon light shall be classified as follows: 5 Provided by IHSNot for ResaleNo reproduct
34、ion or networking permitted without license from IHS-,-,-MIL-T-23824A( OS) (a) Preproduction inspection (paragraph 4.5) (b) (c) Quality conformance inspection (paragraph 4.4) Periodic production inspection (paragraph 4.5) 4.3 Sampling 4.3.1 Preproduction. A preproduction sample of five beacon lights
35、, manufactured in accordance,with 3.2.2, shall be subjected to the pre- production tests detailed in 4.5 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 beacon light by the supplier, pri
36、or to the approval of the preproduction sample, shall be at the suppliers risk. 4.3.2 Lot size. Unless otherwise specified in the contract or order, each shipment of units of product shall be a separate “inspec- tion lot“ and may differ fromthe quantity specified in the total order or contract. lot“
37、 shall be made to the same design, with the same materials and manufacturing techniques, and shall be part of one continuous pro- duction run. in any event, ail units of a single “inspection 4.3.3 Periodic production sasiples. From each succeeding lot or grand lot of 300 or less that have passed the
38、 quality conformance inspection of 4.4, a random sample of five beacon lights will be selected for sybmission to an activity designa-bed by the procuring activity to determipe compliance of the samples with the require- ments of the contract, specification, and drawings. The beacon lights shall be c
39、onsidered satisfactory if they meet all specifica- tions and pertinent drawings requirements and withstand the tests specified in 4,4 and 4.5. to comply with these require-nts will result in the rejection of the lot, asdetermined by the procuring activity. Failure of the periodic production sample 4
40、.4 Quality conformance inspection. Each beacon light delivered under con-hact shall be subjected to the following tests arid exam- inations. Failure to meet any requirement specified herein shall be considere Model #560 Lite-Mike and Model #56i Detector Head, or equiv- alent. 4.4.3.2 Power source as
41、 specified in 3.4.4 and equipped with a SPST switch. 4.4.3.3 4.4.3.4 Stop watch or similar timing device. Hydrostatic test fixture capable of applying an external hydro- static pressure of 550 psig to the lens and surrounding surface of the flashhead assembly including the O-ring. light shall affect
42、 the seal within the fixture. The fixture diameter in the area of the O-ring sea shall be 4.003 - 4.005. The external O-ring on the beacon 4.4.4 Test procedure. The torpedo beacon light shall be tested and inspected in accordance with the following procedures : 4.4.4.1 Inspection. The contractor sha
43、ll perform all necessary inspec- tion procedures to ensure that the torpedo beacon light meets the require- ments of 3.2.3 through 3.2.6, 3.4.1, 3.4.2, and Section 5. of this specifi- c at i on. 4.4.4,2 Functional test 4.4.4.21 Pressure. Secure the torpedo beacon light flashhead assembljj in the tes
44、t fixture (4.4.3.4) and apply a hydrostatic pressure of 550 plus or minus 10 psig to the lens and surrounding surfaces (see NAVORD Dwg 695202) for a perid of 5 minutes. or deformation. There shall be no evidence of leakage 7 Provided by IHSNot for ResaleNo reproduction or networking permitted withou
45、t license from IHS-,-,-MIL-T-23824A 13 W 7737706 0303873 7 4IL-T-23824A( OS) 4.4.4.2.2 4.4.4.2.2.1 Flash rate and flash tube output Remove flashhead assembly from test fixture and connect to power pack. 4.4.4.2.2.2 Connect power pack to power source (4.4.3.2) through SPST switch. 4.4.4.2.2.3 Simulta
46、neously throw switch on and start stop watch 4.4.3.3). Over a 5-minute period, determine flash rate and measure flashtde output, using light meter (4.4.3.1). The torpedo beacon light shall meet the requirements of 3.4.5. 4.4.4.2.3 Polarity reversal. Reverse the input leads to the power pack and thro
47、w SPST switch on and then off. Return input leads to original positions, and repeat the procedures specifiea in 4.4.4.2.2. The torpedo beacon light shall meet the requirements of 3.4.5. 4.4.4.3 Visual and dimensional examinations. Each beacon light shall be examined to determine conformance with the
48、 requirements for - forkmanship and dimensions. 4.4.4.4 Packaging, packing, and marking. Packaging, packing, and marking shall comply with the requirements of Section 5. 4.5 Preproduction and periodic production inspection. The prepro- duction and periodic production samples, after satisfactorily pa
49、ssing the quality conformance inspections detailed in 4.4, shall be subjected to the following tests and examinations. covering the results of preproduction and periodic production inspec- tions shall be forwarded to the procuring activity. Certified inspection data 4.5.1 Vibration 4.5.1.1 Mounting. The beacon light, less pack or packaging, shall be mounted in a manner simulating actual installation in the torpedo 2nd tested as specified in 4.5.1.2
