1、MIL-L-236 IPB 5 October 1973 SUPERSEDING MIGL-23614A I February 1967 MILITARY SPECIFICATION LIGHT, MARKER, DISTRESS, AIRCREW This specification is approved for use by all Departments and Agencies of the Depart- ment of Defense. 1. SCOPE 1.1 This specification covers requirements for one type and siz
2、e of a battery powered, waterproofed, aircrew, distress, marker light and the power supply (batteries) for the aircrew, distress, marker light. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invita- tion for bids or request for proposal, form a part of this spe
3、cification to the extent specified herein: SPECIFICATIONS Federal V-T-295 PPP-B-566 PPP-B-636 PP P- T- 7 6 Thread, Nylon Box, Folding, Paperboard Boxes, Shipping, Fiberboard Tape, Pressure-Sensitive Adhesive Paper, Water Resistant (For Carton Sealing) Military MIL-B-18/224 Battery, Dry, BA-l328/U Pr
4、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-23614B SPECIFICATIONS Military (Continued) MIL-T-5422 MIL-A-5540 MIL-C-19002 MIL F- 21 840 STANDARDS Federal FED-STD-151 Military MIL-STD-105 MIL-STD-129 DRAWINGS Bureau of Naval Weapons Testing, En
5、vironmental, Aircraft Electronic Equipment Adhesive, Polychloroprene Cloth, Coated, and Tape, Coated Cloth-Polychloroprene on Nylon, Pneumatic Life Preserver Fastener Tape, Hook and Pile, Synthetic Metals, Test Methods Sampling Procedures and Tables for inspection by Attributes Marking for Shipment
6、and Storage 63A103D1 Aircrew Distress Marker Light Assembly 63A103D2 Sockets, Contacts, and Wiring Assembly, Aircrew Distress Marker Light 63A103D3 Bayonet Base Lamp and Socket Fixture Details, Aircrew Distress Marker Light 63A103D4 Clip Assembly, Aircrew Distress Marker Light 63A103H5 Case, Aircrew
7、 Distress Marker Light 63A103D6 63A103C7 Top and Plug, Aircrew Distress Marker Light Lens, Aircrew Distress Marker Light Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-L-23bLLIB 62 m 7777706 OLOLI043 6 m MIL-L-236 14B (When requesting any of th
8、e applicable documents, refer to both title and number. Copies of the applicable documents required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 3. REQUIREMENTS 3.1 First article - Unless o
9、therwise specified, the aircrew, distress, marker lights furnished under this specification shall be a product which has been inspected and has passed the first article inspection specified in 4.3 through 4.3.2. 3.2 Materials and comDonents - The materials and components shall conform to the applica
10、ble specifications, standards, and drawings as listed or re- quired herein. No material or component used in the construction of the light shall have any deleterious effect on itself or on any other material or component used in the construction of the light (see 6.2(g). Unless otherwise specified,
11、all the elas- tomeric materials used in the construction of the distress, marker light shall have been manufactured not more than 12 months prior to the date of the delivery of the lights (see 6.2(h). The lamps shall be new (never used). 3.3 Design - The light shall be a waterproofed unit consisting
12、 essen- tiaily of a case, one lamp, one lens, and a push-push type switch. The light shall contain a clip and a nylon cord for fastening and securing the light to the clothing or personal quipment of the survivor. The front of the case shall contain hook fastener tape for mating with the pile fasten
13、er tape attached ta the clothing or personal equip- ment of the survivor. The light shall also be a unit that is battery powered by two batteries. The arrangement of the components shall conform to 63A103D1. 3.4 Construction - The light shall be constructed in accordance with 63A103D1 through 63A103
14、D4, 63A103H5, 63A103D6, and 63A103C7. Hook fastener tape conforming to MIL-F-21840, Type I, color optional, 1 by 3, plus O, minus 1/4 inches, shall be superimposed and sewn onto the cloth side of seam tape of the same size conforming MIL-C-19002, Type II, color optional, as specified in Figure 1. Th
15、e sides and ends of the hook fastener tape and the seam tape shall be flush with each other. The nylon sewing thread shall conform to V-T-295, Type I or II, Class 1 or 2, Size B, color optional. The coated side of the seam tape shall be cemented to the front of the light as specified in Figure 1 wit
16、h the adhesive conforming to MIL-A-5540, Class 3. 3.4.1 Power supply - The power supply of each light shall be two bat- (a) Voltage - When inspected as specified in 4.6.1, the voltage at the terminals of each individual battery shall be not less than 1.22 volts. teries conforming to MIL-B-18/224 wit
17、h the following modification: The light shall not be shipped with the power supply installed nor shall the light and batteries be packaged together. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIGL-23614B A 1/8 J APPROX i“ Hl OK FASTENER TAPE -
18、 3/4 x 3j4 CROSSBOXSTITCH SECTION A-A FIGURE 1. ATTACHMENT OF THE HOOK FASTENER TAPE 4 -_.- -,*.e Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL- L-236 14B 3.5 Performance inspections - 3.5.1 Light intensiQ - When inspected as specified in 4.6.3
19、 through 4.6.3.3, the minimum average light intensity (candlepower) of the horizontal, median, and vertical beams shall be as follows: Light Beam Minimum Average Candlepower Horizontal Median Vertical 1.8 1.9 40. O 3.5.2 Expansion due to altitude and waterproofness - When inspected as specified in 4
20、.6.4, the case or any component shall not increase in volume, burst, crack, deform, or leak. The case or any component shall not separate and the lens shall not cloud or fog. All the components shaii remain perfectly intact. The light shall then be inspected and conform to the requirements for light
21、 intensity, 3.5.1. 3.5.3 Switch activation - When inspected as specified in 4.6.5, the switch shall function properly without any difficulty and the light shall operate. 3.5.4 Exposure cycle - When inspected as specified in 4.6.6, the case or any component shall not burst, crack, or deform. The case
22、 or any com- ponent shall not separate and the lens shall not cloud or fog. The light shall then be inspected and conform to the requirements for light intensity, 3.5.1, and switch activation, 3.5.3. The exposure cycle inspection shall be performed in sequence with the humidity inspection. The expos
23、ure cycle inspection shall be performed first and when completed, the light shall then be inspected for conformance to the requirements for humidity, 3.5.5. 3.5.5 Humidity - When inspected as specified in 4.6.7, the case or any component shall not burst, crack, deform, or separate. The lens shall no
24、t cloud or fog. The light shall then be inspected and conform to the requirements for light intensity, 3.5.1, and switch activation, 3.5.3. 3.5.6 Vibration - When inspected as specified in 4.6.8, the light shall not be lighted and the case or any component shall not crack, deform, or separate. The l
25、ight shall then be inspected and conform to the requirements for light intensity, 3.5.1, and switch activation, 3.5.3. 3.5.7 Salt spray - When inspected as specified in 4.6.9, the light shall not leak or show any evidence of corrosion. The case or any component shall not crack, deform, or separate.
26、The lens shall not cloud or fog. The light shall then be inspected and conform to the requirements for light intensity, 3.5.1, and switch activation, 3.5.3. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL- L- 236 14 B 3.5.8 Weight - When weighed
27、as specified in 4.6.10, the assembled light, with the lamp and hook fastener tape installed and without the two batteries, shall weigh not more than 3.25 ounces, 3.6 - Color - The color of the various components of the light shall be as specified in the applicable drawings. 3.7 Markings - Each light
28、 shall contain the markings and be positioned in the location specified in 63A103D1 and 63A103H5. The markings shall be legible letters and numerals. 3.8 Dimensions - The dimensions of the light shall conform to the applicable drawings and 3.4. 3.9 Workmanship - The distress, marker light shall not
29、be mis- aligned, deformed, nor contain any rough surface, nick, burr, sharp edge, crack, pit, corrosion, scale, embedded foreign matter, spot, stain, tear, cut, mend, nonspecified hole, burn, detached component, or loose particle. The light shaU be uniform in quality and shall be free from mechanica
30、l, electrical, or other irregu- larities or defects which could adversely affect performance, reliability or dur- ability. The lights shail conform to the quality and grade of product established by this specification. The occurrence of defects shall not exceed the acceptance criteria established he
31、rein. 4. QUALITY ASSURANCE PROVEIONS 4.1 Responsibilitv for inspection - Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of ail inspection requirements as specified herein. Except as otherwise specified in the contract or order, the suppl
32、ier may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the in- spections set forth in the specification where such inspections are deemed neces
33、sary to assure supplies and services conform to prescribed requirements. 4.2 Classification of inspection - The examination and testing of the distress, marker lights shall be classified as follows: (a) First article inspection - First article inspection consists of examinations and tests performed
34、on samples which are representative of the production item after award of a con- tract to determine that the production item conforms to the requirements of this specification (see 3.1 and 4.3 through 4.3.2). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from I
35、HS-,-,-MIL- L- 236 14B (b) Qualitv conformance inspection - Quality conformance in- spection consists of examinations and tests performed on individual products or lots to determine conformance of the products or lots with the requirements set forth in this specification (see 4.4 through 4.4.1.2). 4
36、.3 First article inspection - The first article inspection of the distress, marker lights shall consist of examinations and tests for all the require- ments of this specification. 4.3.1 practicable ater the award of the contract or order, the manufacturer shall submit five lights. The samples shall
37、be representative of the construction, workmanship, components, and materials to be used during production. When a contractor is in continuous production of these lights from contract to contract, submission of further first article inspection samples on the new contract may be waived at the discret
38、ion of the procuring activity (see 6.2(c). Approval of the first article inspection samples or the waiving of the first article inspection does not preclude the requirements for performing the quality conformance inspection. The first article inspection samples shall be furnished to the Government a
39、s directed by the contracting officer (see 6.2(d). First article samples - Unless otherwise specified, as soon as 4.3.2 Upon completion of the first article inspection, all the applicable inspection reports and when applicable, recommendations and comments pertinent for use in monitoring production
40、will be forwarded to the cognizant Government ac- tivis. One of the approved first article inspection samples of the lights will be returned to the manufacturer, for use in monitoring production. The remaining lights will be destroyed in the first article inspection and shall not be considered as pa
41、rt of the quantity to be delivered under the contract or order. 4.4 Qualitv conformance inspection - The sampling and inspection levels shall conform to MIL-STD-105. The quality conformance inspection shall consist of the following: Visual examination of the lights Dimensional check of the lights Li
42、ght intensity Expansion due to altitude and waterproofness Switch activation Weight of the assembled light Preparation for delivery Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-L-23614B b2 9999906 0304048 5 MIL-L-23614B 4.4.1 Sampling - 4.4.1
43、.1 Inspection lot - 4.4.1.1.1 Lights - An inspection lot size shall be expressed in units of one light with the lamp installed made essentially under the same conditions and from the same materials and components. The sample unit shail be one light with the lamp installed, 4.4.1.1.2 Preparation for
44、delivers - An inspection lot size shall be expressed in units of one fully prepared shipping container, containing lights with the lamps installed, fully prepared for delivery from essentially the same materials and components. The sample unit shaU be one shipping container, containing lights with t
45、he lamps installed, fully prepared for delivery with the exception that it need not be sealed, 4.4.1.2 Sampling for examinations and tests of the lights and preparation for delivery - The sample size, acceptance criteria, examinations, and tests re- quired for the lights or preparation for delivery,
46、 as applicable, shall be as specified in Table I. TABLE I SAM.PLE SIZE, ACCEPTANCE CRITERIA, EXAMINATIONS, AND TESTS OF THE UGHTS AND PREPARATION FOR DELIVERY INSPECTION Visual examination Dimensional check Light intensity PARAGRAPH 3.7, 3.9, and applicable draw- ings 3.8 3.5.1 t. 6.2.1 C. 6.3 ;hrou
47、gh i. 6.3.3 SAMPLE SIZE Every light Por major defects. inspection Level II for minor defects inspec tion Level S-3 Every light ACCEPTANCE CRITERIA Reject all units with any major defect and an acceptable quality level of 6.5 defects per 100 units for minor defects An acceptable quality level of 4.0
48、defects per 100 units Reject all defective units Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-INSPECTION Expansion due to altitude and water- proofness Switch activation Weight Preparation for delivery MIL- L-236 14B TABLE I (Continued) I I i SAMP
49、LE ACCEPTANCE CRITERIA 3.5.2 An acceptable Level S-1 quality level of 1.5 defects per 100 units 3.5.3 14.6.5 /Every light Reject all de- fective units 3.5.8 An acceptable quality level of 1.5 defects 4.6.10 Inspection Level S-1 l I I per 100 units I Section 5 4.6.2.2 Inspection An acceptable Level 5-2 quality level of 2.5 defects per 100 units 4.5 Inspection conditions - 4.5.1 AtmosDheric conditions - Un
