1、MIL-L-52240C 9999906 I1980879 651 = MIL-L-52240C 17 March 1994 SUPERSEDING MIL-L-52240B 9 April 1979 MILITARY SPECIFICATION LA“S, ELEXTRIC: LIGHT SCURCE, HEAD-, m-LEvEL, VISIBLE This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. T
2、his specification covers light-weight, self-contained, head-mounted lanterns designed to provide minimum illumination for use in areas where maxirrnun security is required. 1.2 Classification. anterns covered by this specification shall be of the following types, as specified: Type I - Hood, Unshiel
3、ded Type II - Hood, Shielded 2. APPLICABLE 2.1 Government documnts. 2.1.1 Specifications, standards, and handbooks. The following specifica- tions, standardc, and handkooks form a part of this docwnent to the extent specified herein. Unless otherwise specified, the issues of these documents Benefici
4、al comnents (recomnendations, additions, deletions) and any pertinent data which my be used in improving this document should be addressed to: U.S. Army Natick Research, Developnt, and Engineering Center, Natick, MA 01760-5019, by using the Standardization Document Improvement Proposal (DD Form 1426
5、) appearing at the end of this document or by letter. AMX N/A FSC 6230 DISIRIIWTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-52240C 9Ob 1980880 373 MIL-L-52240C are tho
6、se listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). SPECIFICATIONS FEDERAL PPP-B-56 6 - Boxes, Folding, Paperboard PPP-B-601 - Boxes, Wood, Cleated-Plywood PPP-B-636 - Boxes, Shipping, Fiberbo
7、ard MILITARY MIL-P- 116 - Preservation, Methods of MIL-V-173 - Varnish, Moisture- and Fungus-Resistant (for Treatment of Camninications, Electronic, and Associated Equiprent) MIL-T-704 - Treatment and Painting of Materiel MILITARY MIL-SID-105 - -ling Procedures and Tables for Inspection by Attribute
8、s MIL-SlD-129 - Marking for Shipnent and Storage MIL-STD-130 - Identification Marking of U.S. Military Property (Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available fran the Standardization Documents Order Desk, Building 4D, 700 Robbins A
9、venue, Philadelphia, PA 19111-5094.) 2.1.2 Other Government douuments, drawinqs, and publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. the issues are those cited in the solicitation. Unless otherwise specif
10、ied, U.S. ARMY NATICK RESEAFaM, DEVEIXIPMENT, AND ENGINEERING CENIER TA13204E2450 - Lantern, Electric; Light Source, Head-Mounted, im-Level, Visible (Copies of drawings are available fran the U.S. Army Natick Research, Developnent, and Engineering Center, Al“: SATNC-X, Natick, MA 01760- 5017. ) 2 Pr
11、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-52240C m 9999906 1980881 20T m MIL-L-52240C 2.2 Non-Government publications. The following documents form a part of this document to the extent specified herein. the issues of the documents which ar
12、e DoD adopted are those listed in the issue of the DDISS cited in the solicitation. the issues of the documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). Unless otherwise specified, Unless otherwise specified, AMERICAN S0CIE;Ty FOR TESTING AND MATE
13、RIATS (ASTM) D 3951 - Standad Practice for Comnercial Packaging D 3953 - Strapping, Flat Steel and Seals (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103-1187.) CALIFORNIA AIR P0L;uTrION CXXWFOL DISTRICT Rule 102
14、- Photochemically Reactive Solvents (Application for copies should be addressed to the Southern California Air Pollution Control District, 434 South San Pedro Street, IDS Angeles, CA 90013.) (Non-Govenunent stan- and other publications are normally available from the organizations that prepare or di
15、stribute the documents. documents also may be available in or through libraries or other informa- tional services.) These 2.3 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this
16、 document, however, supersedes applicable laws and regulations unless a specific exaption has been obtained. 3.1 First article. When specified (see 6.2), a sample shall be subjected to irst article inspection (see 6.3) in accordance with 4.3. 3.2 Materials and corriponents. The materials and compone
17、nts shall be as Materials and components specified herein and on the applicable drawings. not definitely specified shall be of the quality normally used by the manufacturer, provided the completed item complies with all the provisions of this specification. practical as long as it meets the requirem
18、ents of this specification. It is encouraged that recycled material be used when 3.3 Desiqn and construction. The design and construction shall be as specified herein and as shown on drawing TA13204E2450 and all subsidiary drawings pertaining thereto. 3 Provided by IHSNot for ResaleNo reproduction o
19、r networking permitted without license from IHS-,-,-MIL-L-52240C 3.3.1 Treatment and paintinq. The portions of the lantern normally painted shall be cleansed, treated, and painted in accordance with MIL-T-704, type A. 3.3.2 Funcws and moisture resistance. The electrical circuitry, including all comp
20、onents and connections, except as specified below, shall be protected fran the effects of fungus growth and moisture by an overall treatment with a varnish conforming to MIL-V-173, composition I or II, as applicable (see 3.3.2.1), with 1 percent copper 8-quinolinolate (by weight) based on the nonvol
21、atile content of the varnish: (a) Components or circuit elements that are inherently fungus and moisture resistant or which are heremetically sealed, need not be treated. (b) Components or circuit elements whose functions will be adversely affected by the varnish coating shall not be treated. When u
22、sed, the varnish shall be applied by spray, brush, or a canbination of both to give dry-film thickness of not less than 1 mil to component or element surfaces previously cleaned and prepared so that the surfaces are free fran all foreign matter which would interfere with the adherence or function of
23、 the varnish. 3.3.2.1 Composition. Composition II shall be used only in the case when local air pollution regulations governing application of varnish precludes the use of composition I. When composition II is used, the contractor shall provide evidence to the Govemnt that the use of composition II
24、is required, and shall certify that the composition II material canplies with Southern California Air Pollution Control District, Rule 102 - Photochemically Reactive Solvents. 3.4 Identification markinq. The lantern shall be identified in accordance with MIL-SID-130 and as sham on the applicable dra
25、wings. 3.5 Workmanship. Joints and seams shall be a tight fit, edges shall be smooth, and soldered surfaces shall be clean. 4. QUALITY ASSURANCE PFtVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performan
26、ce of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified in the contract or purchase order, the contractor my use his awn or any other facilities suitable for the perfom- ance of the inspection requirements specified herein, unless disapproved by
27、the Govemment. inspections set forth in this specificaton where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements. The Government reserves the right to perform any of the 4 Provided by IHSNot for ResaleNo reproduction or networking permitted wit
28、hout license from IHS-,-,-MIL-L-52240C m 9999906 1980883 082 m MIL-L-52240C 4.1.1 Responsibility for compliance. Ail item shall meet all requirements of sections 3 and 5. specification shall becane a part of the contractors overall inspection system or quality program. specification shall not reliev
29、e the contractor of the responsibility of ensuring that all products or supplies suhnitted to the Government for acceptance cqly with all requirements of the contract. inspection, as part of mufacturing operations, is an acceptable practice to ascertain conformance to requirements, however, this doe
30、s not authorize suhnission of known defective material, either indicated or actual, nor does it cornnit the Government to accept defective material. The inspection set forth in this The absence of any inspection requirements in the Sampling 4.1.2 Responsibility for dimensional requirements. Unless o
31、therwise specified in the contract or purchase order, the contractor is responsible for ensuring that all specified dimensions have been met. When dimensions cannot be examined on the end item, inspection shall be made at any point, or at all points in the manufacturing process necessary to ensure c
32、cmpliance with all dimensional requirements. 4.2 Classification of insmtions. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.3). b. Quality conformance inspection (see 4.4). 4.3 First article inspection. When a first article is required (se
33、e 3.1 and 6.2), it shall be examined for the defects specified in 4.4.3 and 4.4.4 and shall be tested for the characteristics specified in 4.4.5. The presence of any defect or failure to pass any test shall be cause for rejection of the first article. 4.4 Quality conformnce inspection. Unless otherw
34、ise specified, sampling for inspection shall be performed in accordance with MIL-STD-105. 4.4.1 Component and material inspection. In accordance with 4.1, caqmnents and materials shall be inspected in accordance with all the requirements of referenced documents unless otherwise excluded, amended, mo
35、dified, or qualified in this specification or applicable purchase document. 4.4.1.1 Certification. The contractor shall fumish a certificate of ccmpliance certifying that the varnish used to treat the electrical circuitry against fungus growth and moisture conforms to an is applied in accordance wit
36、h the requirements specified in 3.3.2. 4.4.2 In-process inspection. Inspection of subassemblies shall be mde to ascertain that construction details which cannot be examined in the finished product are in accordance with specified requirements. reserves the right to exclude from consideration for acc
37、eptance, any material or service for which in-process inspection has indicated nonconformance. The Government 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-HIL-L-5224OC 9999906 1980884 TI9 m MIL-L-5224C 4.4.3 End item visual examination. The end
38、items shall be examined for the defects listed in table I. lanterns. The inspection level shall be II and the finding of any defect shall be cause for rejection of the lot. The lot size shall be expressed in units of The sample unit shall be one lantern. TABLE I. End item visual defects Examine Defe
39、ct Classification Major Minor Painted surfaces Blistered, crinkled, peeling, chipping, or not adherent 201 Color not as specified 202 Workmanship Incorrect fit at joints and seams, edges not smth or any misalignment 203 Soldering defects such as cold joints or excessive solder 2 04 Any component mis
40、sing, loose, fractured or malformed 10 1 Design Any nonconforniance to the drawings 102 Marking Missing, incorrect, illegible, mis- placed, or not as specified 205 4.4.4 End item dimensional examination. The end items shall be examined for conformance to the dimensions specified on the drawings. dim
41、ensions that can be evaluated without -ging or disassembling the end items shall be examined. Any dimension not within the specified tolerance shall be classified as a defect. The lot size shall be expressed in units of lanterns. be S-2 and the finding of any defect shall be cause for rejection of t
42、he lot. Only those The sample unit shall be one lantern. The inspection level shall 4.4.5 End itan testinq. The end item shall be tested for operation of the ON-OFF switch and removal and installation of the lighthood as specified in 4.5.1. The sample unit shall be one lantern. failure shall be caus
43、e for rejection of the lot. The lot size shall be expressed in units of lanterns. The inspection level shall be S-2. Any test 4.4.6 Packauinu examination. The fully packaged end items shall be examined for the defects listed below. units of shipping containers. container fully packaged. of any defec
44、t shall be cause for rejection of the lot. The lot size shall be expressed in The sample unit shall be one shipping The inspection level shall be S-2 and the finding 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Examine Marking (exterior and inte
45、rior) MIL-L-52240C m 9999906 1980885 955 m MIL-L-52240C Materials Workmnship Defect unitted; incorrect; illegible; of improper size, location, sequence, or method of application Any ccmponent missing, damaged, or not as specified Inadqate application of ccmponents, such as: incomplete sealing or clo
46、sure of flap, inproper taping, loose strapping, or inadequate stapling wilged or distorted container Content Mimber per container is more or less than required 4.5 Methods of inspection. 4.5.1 ODe ration. The lantern, with batteries installed, shall be operated by actuating the “ON“ and “OFF“ switch
47、 ten times and by installing and removing the lighthood (type II lantern) five times. Any malfunction of the lantern or failure of the lighthood (type II lantern) to lock into position when installed shall constitute failure of the test. 5. PACKAGING 5.1 Preservation. Preservation shall be level A,
48、B, or Comnercial as specified (see 6.2). 5.1.1 &vel A preservation. Each lantern shall be individually preserved in accordance with MIL-P-116, method IC-2, using a close-fitting comnercial fiberboard box or a box conforming to PPP-B-566 or PPP-B-636, type CF, class domestic, variety CW, grade 125. T
49、he contents shall be cushioned within the box in a mer to prevent movement or damage. 5.1.2 kvel B preservation. Each lantern shall be individually preserved in accordance with MIL-P-116, method III, using a close-fitting box conforming to PPP-B-636, WC, style optional. The contents shall be cushioned within the box in a mer to prevent movement or damage. 5.1.3 Cannercia1 preservation. Lanterns shall be preserved in accordance with AsIM D 3951. 5
