1、1 December 19f2 SUPERSEDING MIL-C-t649A (SHIP83 13 July 1466 7Cee 6.4) FIILITARY SPECIFICATION SEARCHLIGIITS , INCANDESCENT, 7-INCH SEALZD BEAM LMlP FOR SMALL BOATS -1. SCOPE 1.1 Scope. This specification covers incandescent searchlights for use on small 1.2 Classification. The searchlights shall be
2、 of the following types, as specified boats. (see 6.2): Type I - Pilot house (remote) control, splashproof. Type II - Local control, splashproof. 2. APPLICABLE DOCUXENTS # 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposal form a part of the spe
3、cification to the extent specified herein: SPECIFICATIONS FEDERAL J-C-580 - Cord, Flexible, and Wire, Fixture (Electrical, O- to 600-Volt Service). 14 IL I TARY MIL-M-14 - Molding Plastics and Molded Plastic Parts, Thermosetting. .I-IIL-R-900 - Rubber Gasket Material, 45 Durometer Hardness, For Ilod
4、eratcly XIL-E-917 - Electric Power Equipment, Basic Requirements (Naval Shipboard MIL-D-1000 - Drawings, Engineering and Associated Lists. MIL-D-1000/2 - Drawings, Engineering and Associated Lists. MIL-T-7928 - Terminals, Lug; Splices, Conductor: Crimp Style, Copper MIL-P-15024 - Plates, Tags and Ba
5、nds for Identifjcation of Equipment. MIL-P-15024/5 - Plates, Identification. MIL-P-15037 - Plastic Sheet, Laminated, Thermosetting, Glass-Cloth, MIL-E-15090 - Enamel, Equipment, Light-Gray (Formula No. 11). MIL-E-15130 - Enamel, Ship, Exterior, Alkyd, Haze Gray, No. 27, Formula P4IL-S-19622- Stuffin
6、g Tubes, Nylon, General Specification. Low Temperature Service. Use). General Specification For. Ple lamine -Res i n . No. 5H. STANDARDS IULITARY &IIL-STD-108 - Definitions of and Basic Requirements for Enclosures for MIL-STD-167 - Mechanical Vibrations of Shipboard Equipment. MIL-STD-202 - Test Met
7、hods for Electronic and Electrical Comoonent Parts. MS15535 - Lamps, Incandescent, Sealed Beam Par. 56, Screw Terminal. MS17339 - Cable, Safety (Wire Rope). (Copies of specifications, standards, drawings, and publications required by suppliers Electric and Electronic Equipment. in connection with sp
8、ecific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) to the extent specified herein. of invitation for bids or request for proposal shall apply: 2.2 Other ublications. The following documents form a part of this specificatiorr Unless
9、 otherwise indicated, the issue in effect on date NATIONAL BUREAU OF STANDARDS Handbood H28 - Screw Thread Standards for Federal Services. FSC 6230 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-e- I MIL-3-26 49B (SHIPS) (Application for copies shou
10、ld be addressed to the Superintendent of Documents, Government printing Office, Washington, D.C. 20402.) AMERICAN WELDING SOCIETY (AWS) Velding Handbook. (Application for copies should be.addressed to the American Welding Society, Inc., United Engineering Center, 345 East 47th Street, New York, N.Y.
11、 10017.) NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NPlA) National Electrical Code, Analysis of 1962 Revision, 200-1962. (Application for copies should be addressed to the National Electrical :lanufacturers (Technical society and technical association specifications and standards are generally A
12、ssociation, 155 East 44th Street, New York, N.Y. 10017.) available for reference from libraries. They are also distributed among technical groups and using Federal agencies.) 3. REQUIREiilENTS 3.1 Sample for first article inspection. Prior to beginning production, a sample manufactur-pprodu- mnd pro
13、cesses shall be tested as specified in 4.2 (see 6.3). 3.2 Mechanical requirements, r 3.2.1 Yaterial. Xaterial shall be as specified herein or shall meet the performance requirements specified herein. All materials shall be noncorrosive and nonmagnetic. The magnetic permeability shall be 2.0 or less
14、after fabrication. 1 and 2. The device shall be suitable for use as a searchlight, mounted as shown on figures 1 and 2. frequent overhaul under severe conditions of vibration, temperature, humidity and salt atmosphere. The construction shall be simple and sturdy and such that continued satis- factor
15、y operation and routine maintenance in service do not require special tools or ex- cessively preciso workmanship. Special tools are defined as those tools not listed in the Federal Supply Catalog (copies of this catalog may be consulted in the office of the Defense Contract Administration Service (D
16、CAS) 3.2.2 Design. The searchlights shall be designed in general conformance with fiqures 3.2.3 Construction. The searchlights shall be constructed for long service without I # 3.2.4 Painting. Painting shall be in accordance with MIL-E-917. Paint shall conform to MIL-E-15130 or MIL-E-15090. The pain
17、t shall not discolor or become soft when the search- light is operated in an amhient temperature of 70 Fahrenheit (F.) for a period of 2 hours. 3.2.5 Interchangeability. All similar parts of corresponding apparatus furnished on the same order or built to the same manufacturers drawings shall be stri
18、ctly interchange- able without the necessity of further machining or handling of any kind. I 3.2.6 Threaded parts. Screw threads shall conform to the requirements of Handbook H-28, UNC class 2. 3.2.6.1 Self-tapping devices and sheet metal screws shall not be used in the fahri- cation of the searchli
19、ghts. 3.2.6.2 Rocking devices shall be used to secure mechanical assemblies to provide continuous satisfactory operation under conditions of vibration specified herein. 3.2.7 Welding. Welding and allied processes used in fabrication shall be in accord- ance with AWS Welding Handbook. 3.2.8 Stress re
20、lief. Certification of compliance shall be furnished by the manu- facturer. 3.2.8.1 Metals. All metals used in fabrication and assembly shall be suitably treated or heat treated to prevent deterioration or failure due to stresses or other condi- tions resulting from working, forming, welding etc. du
21、ring the fabrication process. (Peen- ing after welding will accomplish stress relieving (see Welding Handbook).) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-26q7B 62 m 7777706 0076679 4 r4IL-S-26 430 ISHIPS) 3.2.8.2 Plastics. Adequate mea
22、sures shall be taken in molding or processing plastics to insure thatzrescbuildup does not occur or is satisfactorily treated to relieve these stresses to prevent deterioration or failure of the part or assembly. 3.2.9 Xanufacturers identification plate. The identification plate s!iall conform to ty
23、pe A, R, orCofP?5024andMIL-P-15024/5 and shall contain the following information: (a) tzianufacturer. (bj Contract number. (c) Specification number and type. (d) Symbol number. (e) Date -of manufacture. The identification plate shall he securely attached to the fixture. P-15024, giving complete oper
24、ating, servicing and maintenance instructions and bearing the tabulated information shown in table I shall be provided, securely attached to housing. R 3.2.10 Information plate. An information plate conforming to type A, B, or C of XIL- Table I - Lamps. RS part number Volts Watts _- _I_I- -_. 12.5 1
25、00 4543 6 2 40 - 19 3 -0 9 4 1 MS 15 5 3 5 - 1 !.IS 15 5 3 5 - 2 2 4-2 8 250 6240-274-4013 MS15535-3 24-28 250 Flood 6240 270-4695 6240-155-7774 6240-917-0774 MS15535-7 24-28 450 XS15 5 3 5 - 4 300 PAR Flood _I_- 56/2SP - 3.2.10.1 Unless otherwise specified (see 6.2) lamps shall not be furnished wit
26、h the 3.2.11 Angles of operation. The searchlights shall be so designed to permit the Searchlight. following operational limits of train and elevation: Horizontal rotation - 370 degrees Depression - 45 degrees Elevat-on - 45 degrees Appurtenances such as operating handles, stuffing tubes, cables, mo
27、unting, attachments etc. shall not interfere with the operation of these searchlights. 3.2.12 Enclosure requirements. Housing (drum) assembly shall be dripproof in accord- ance with IIIL-STD-108. For type I, control rod packing shall provide a dripproof seal, and base assembly shall provide a drippr
28、oof seal to prevent leakage of water into the boat. A drain hole (approximately 3/16-inch) can be provided in the bottom of the housing assembly to reduce condensation and to permit escape of any leakage durinq service use. 3.2.13 Dissimilar metals. Application and use of dissimilar metals shall con
29、form to the requirements of mL-E-917. 3.2.14 Bearing surfaces. Metal-to-metal bearing surfaces, such as pivot and trunnion bearings, shall not be plated. 3.2.15 Installation. An instruction sheet giving step-by-step procedure with diagrams for correct installation shall be furnished with each search
30、light. Instructions for ground- ing green conductor inside power source shall be provided. 3.2.16 Operational requirements. 3.2.16.1 Inclination. The searchlights shall be capable of operation at any angle of inclination from normal that may be encountered by small boats. test of MIL-STD-167 without
31、 mechanical damage, malfunction or loosening or separation of parts (see 4.5.3). test specified r4.5.4. 3.2.16.2 Vibration. The searchlights shall be designed to withstand type I vibration 3.2.16.3 Corrosion. The searchlights shall satisfactorily withstand the salt spray 3 Provided by IHSNot for Res
32、aleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-2649B 62 U 9999906 0096700 7 W MIL-5-264 9B (SHIPS) 3.2.17 Dimensional tolerances. The following tolerances shall apply: (a) Fractional 5 1/64 inch. (b) Decimal 2 0.005 inch. (c) Angular 2 1 degree. Wider tolerances will b
33、e permitted where interchangeability of parts, electrical or operat- ing conditions is not affected. use of a safety cable asown on MS17339. 3.2.18 Retainer ring. Lamp retaining ring shall be secured to housing assembly by 3.2.19 All sharp corners shall be slig!itly rounded. 3.2.20 Castings shall be
34、 free from cold sheets, blow holes, or any imperfections that may affect strength. 3.3 Electrical requirements. 3.3.1 Clearances. Minimum electrical creepage and clearances shall be as required by NEMA Iiational Electrical Code Handbook. 3.3.2 Insulating materials. Insulating materials shall be type
35、 GIIE in accordance with f-lIL-P-15037 (Note: All cut surfaces shall be given two coats of varnish prior to assembly of parts. ) Holding compounds shall conform to MIL-il-14. 3.3.3 Cable. Electrical cable shall be three conductor (green grounding conductor), cize16, conforming to J-C-580, 10 inches
36、long or length as specified in the contract or order. 3.3.4 Terminals. Terminals shall be in accordance with MIL-T-7928. Terminals shall be used on all inner (inside) se,archlight connections. 3.3.5 Gaskets. :.laterial for rubber gaskets shall conform to MIL-R-900. 3.3.6 Insulation resistance. The i
37、nsulation resistance between all current carrying and noncurrent carrying parts shall be not less than 1 megohm (see 4.5.2). 3.3.7 Dielectric strength. There shall be no evidence of breakdown when the search- light is subject to the test specified in 4.5.1. 3.3.8 Safety. 3.3.8.1 Groundin . Means sha
38、ll be provided to attach the green conductor of the 3.3.9 Cable entrance into housing and bases shall be by plastic stuffing tubes in Precautions shall be taken in the design and construction of the searchlight to insure the safety of operating personnel. cable to the ind of the housing. accordance
39、with IIIL-S-19622. Cable entrance into stanchion shall meet the requirements of 3.2.12. 3.4 Drawings. # 3.4.1 Drawings shall be furnished and shall conform to category F, form 2 of MIL-D- 1000 and type II of :.lIL-D-1000/2. article sampdpassed the specified tests, shall place on record a set of prin
40、ts of the drawing used for manufacturing the searchlight with the following activities: (a) One set for file with the cognizant DCAS. fb) One set for file with the Naval Ship Engineering Center. (c) One set for file with the contracting officer. 3.4.2 Drawin distribution. The manufacturer, upon bein
41、g advised that his first 4. QUALITY ASSURANCE PROVISIONS # 4.1 Res onsiboilit for ins ection. Unless otherwise specified in the contract or purchase orde:, the supp1E is Iesponsible for the performance of all inspection require- ments as specified herein. Except as otherwise specified in the contrac
42、t or order, the supplier may use his own or any other facilities suitable or the performance of the 4 - y- ./- - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ment reserves the right to perform any of the inspections set forth in the specification
43、where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. examinatio- testcpzifiedin 4.4 and 4.5.1 through 4.5.4. 4.2 First article inspection. The first article sample shall be subjected to the # 4.2.1 First article inspection reports. Productio
44、n shall not be started until a - report of staisfactorycmpletionof Wfzst article inspection has been approved by NAVSEC . 4.3 Qualit1 conformance inspection. 4.3.1 Lot. For the purpose of sampling, a lot shall be the identical number of searcliliglitsf each type on the contract or order. 4.3.2 Sampl
45、in for examination and tests. A randomsample of searchlights shall be selected in accordancGith table I from= lot and shall be subjected to the examina- tion specified in 4.4 and test specified in 4.5.2. Any searchlight containing one or more defects and any searchlight failing in one or more tests
46、shall not be offered for delivery. If the number of such defective searchlights in any sample exceeds the acceptance number for the sample, the lot represented by the sample shall not be offered for delivery. Table II - Sampling for examination and insulation resistance. -_ Humber of Number of 1 sea
47、rchlights searchlights Acceptance Rejection in lot in sample number number - - I 2-to 10 11 to 15 45 55 16 to 25 26 to 40 41 to 65 66 to 110 111 to 180 181 to 300 301 to 500 501 and over 4.4 Examination. The searchlights shall be examined to determine compliance to the requiremen-this specification.
48、 4.5 Tests. 4.5.1 Dielectric strength. A 60 cycle voltage whose effective potential to 1240 volts shall be applied between conductors (with lamp removed) and between all conductors and searchlight frame (with lamp removed). 4.5.2 Insulation resistance. The insulation resistance with 500 volts applie
49、d between each conductor (with lamp removed) and between all conductors and the searchlight shall be not less than 1 megohm. 4.5.3 Vibration. The first article sample shall be subjected to type I vibration tests of MIL-STD-167up to and including the frequency range of 15 cycles per second re- quired by MIL-STD-167. The manner of mounting shall be simulated to that on shipboard. Use of resilient mounting shall not be permitted. The searchlight shall remain locked in any chosen position
