1、MIL-L-SL3LH 0h 2058350 331 MIL-L-9 13 1H 7 Januarv 1983 SUPERSEDING MIL-L-O09131G(AS) 19 March 1976 MIL-R-9131A 15 March 1955 MILITARY SPECIFICATION LIFE RAFTS, INFLATABLE, TWENTY MAN This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Sc
2、ope. This specification covers requirements for two types of twenty man inflatable life rafts. 1.2 Classification. The life rafts shall be of the following types, as speci- fied (see 6.2.lb): F- 2B LRU-15 /A 2, APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handb
3、ooks. Unless otherwise Specified, the following specifications, standards, and handbooks of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) speci- fied in the solicitation form a part of this specification to the extent specified herein. SPE
4、CIFICATIONS FEDERAL L-S-O0626 - Sponge, Synthetic. FF-0-605 - Opener, Can, Hand (Disposable, Combination Opener and Punch). UU-T-8 1 - Tag, Shipping and Stock. PPP-B-6 36 - Boxes, Shipping, Fiberboard. PPP-C-843 - Cushioning Material, Cellulosic. PPP-T-60 Tape, Packaging, Waterproof. PPP-T-9 7 - Tap
5、e, Pressure-Sensitive Adhesive, Filament Reinforced. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Engineering Specifications and Standards Department (Code 93), Naval Air Engineering Center,
6、Lakehurst, NJ 08733, by using the self-addressed Standardization Document Improve- ment Proposal (DD Form 1426) appearing at the end of this document or by letter. FSC 4220 THIS DOCUMEN3 c PAGES. Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking perm
7、itted without license from IHS-,-,-MILITARY MIL-B-18/224 - MIL-P- 116 - MIL-K- 8 18 - MIL-W-1053 - MIL-C-5040 - MIL-F-8209 MIL-P-8258 - MIL-B-85 7 1 - MIL-S-11262 - MIL-W- 15 11 7 - MIL-F-15381 - MIL-S-17980 - MIL-M-18371 MIL-L-23614 - MIL-B- 36964 - MIL-L-38217 - MIL-C-81543 - MIL-C- 85 3 6 1 - Bat
8、tery, Dry, BA-l328/U. Preservation, Methods of. Knife, Pocket, General Purpose. Whistle, Ball, Plastic. Cord, Nylon. Flashlight, Hand Generated, Type A-9 (Lamp Assembly, Flashlight, Type A-9). Pumps, Hand, Air. Bag, Storage, Drinking Water. Sunburn Preventative Preparation, (Cream, Paste and Lotion)
9、. Water, Drinking, Canned, Emergency. Food, Packet, Survival, Aircraft Life Raft. Sea Marker Packet, Inflatable Survival Equipment. Mirror, Emergency Signaling, Mark 3. Light, Market, Distress, Aircrew, SDU-30. Blanket, Combat, Casualty, Lightweight, Waterproof, Aluminized Plastic. Light, Marker, Di
10、stress, SDlJ-5/E. Container Assemblies, Inflatable Life Raft. Carrying Case Assemblies, Inflatable Life Raft. STANDARDS FEDERAL FED-STD-191 - Textile Test Methods. MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by MIL-STD-129 MIL-STD-130 - Identification Marking of U.S. Militar
11、y Property. MIL-STD-794 - Parts and Equipment, Procedures for Packaging and Attributes. Marking for Shipment and Storage. Packing of. 2.1.2 Other Government documents, drawings, and publications. The following other Government documents form a part of this specification to the extent speci- fied her
12、ein. CODE OF FEDERAL REGULATIONS 49 CFR 100-199 - Regulations for the Transportation of Explosives and Other Dangerous Articles. (Application for copies should be addressed to the Superintendent of Documents, Government Printing Office, Washington, DC 20402.) 2 Provided by IHSNot for ResaleNo reprod
13、uction or networking permitted without license from IHS-,-,- HIL-L-L3LH = 0b 2058352 LO4 MIL-L-9131H DRAWINGS NAVAL AIR DEVELOPMENT CENTER CL230D1 - Life Raft and Equipment Assemblies - Multiplace. NAVAL AIR SYSTEMS COMMAND 6 3A8 OH 1 63A80H2 6 3A8 OH3 63A80H4 6 3A80D5 63A80H6 6 3A80H7 6 3A80H8 63A8
14、0H9 6 3A80H 1 O 63A80H11 63A80D12 6 3A80H13 63A80H 14 6 3A120H 1 NAVAL SEA SYSTEMS 645-1428951- AIR FORCE 53B6244 - 53D3799 - 55C3689 - 20 Man Inflatable Life Raft Assembly, LRU-l5/A and F-2B. Canopy Assembly, F-2B Inflatable Life Raft Assembly. Mast and Canopy Rod Assemblies, F-2B Inflatable Life R
15、aft Assembly. Accessory Container Assembly, LRU-l5/A (Mark 20) Life Raft. Equalizer Assembly, 20 Man Life Raft, LRU-l5/A and F-2B. Carrying Case Assembly, for Droppable LRU-l5/A and F-2B Life Rafts (20 Man). Cylinder Sling Assembly, 20 Man Life Raft, LRU-lS/A. Cover Assembly, Carbon Dioxide Cylinder
16、, 20 Man Life Raft, LRU-l5/A and F-2B. Boarding Ramp Assembly, 20 Man Life Raft, LRU-l5/A and F-2B. Folding Procedure for F-2B Life Rafts. 20 Man Life Raft Accessory Container Assembly for Wing Installation in KC-130F and C-130F Aircraft. Canopy Folding Procedure, 20 Man Life Raft. Carrying Case Ass
17、embly for Wing Installation, LRU-l5/A and F-2B Life Rafts (Mark 20). Folding Procedure for Mark 20 Life Raft, LRU-l5/A. Inflation Equipment, Carbon Dioxide, for Multiplace Life Rafts. COMMAND Hoisting, Towing and Miscellaneous Fittings, Inflatable Boats. Clamp, Equalizer, Tube, 20 Man Life Raft. Cov
18、er, Carbon Dioxide Cylinder, 20 Man Life Raft. Cylinder and Valve Assembly, Carbon Dioxide, Multi- place Life Raft. PUBLICATIONS NAVAL AIR SYSTEMS COMMAND NAVAIR 13-1-6.1 - Aviation Crew Systems Manual Inflatable Survival Equipment. NAVAIR 00-25-513 - Code Card. 3 Provided by IHSNot for ResaleNo rep
19、roduction or networking permitted without license from IHS-,-,- MIL-L-SL3LH M 999990b 2058353 040 MIL-L-9131H (Copies of specifications, standards, handbooks, drawings, and publications required by manufacturers in connection with specific acquisition functions should be obtained from the contractin
20、g activity or as directed by the contracting officer.) 2.2 Other publications. The following documents form a part of this specifi- The issues of the documents which are in- cation to the extent specified herein. dicated as DoD adopted shall be the issue listed in the current DoDISS and the suppleme
21、nt thereto, if applicable. NATIONAL MOTOR FREIGHT TRAFFIC ASSOCIATION, INC., AGENT National Motor Freight Classification (Application for copies should be addressed to the National Motor Freight Traf- fic, Tariff Department, 1616 P Street, N. W., Washington, DC 20036.) UNIFORM CLASSIFICATION COMMITT
22、EE, AGENT Uniform Freight Classification Rules (Application for copies should be addressed to the Uniform Classification Com- mittee, Room 1106, 222 South Riverside Plaza, Chicago, IL 60606.) (Industry association specifications and standards are generally available for reference from libraries. usi
23、ng Federal agencies.) They are also distributed among technical groups and 2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein, the text of this specification shall take precedence. 3. REQUIREMENTS 3.1 Qualification. The life raf
24、ts furnished under this specification shall be products which are qualified for listing on the applicable qualified products list at the time set for opening of bids (see 4.3 and 6.3). life rafts in this specification will qualify a supplier for the two types specified herein. Qualification of the F
25、-2B 3.2 First article. When specified, a sample shall be subjected to first article inspection (see 4.4 and 6.4). 3.3 Materials and components. Materials and components shall conform to appli- cable specifications, standards and drawings as listed or required herein (see 6.2.li(l). Materials and com
26、ponents which are not covered by applicable specifi- cations, standards or drawings, or are not specifically described herein, shall be of the best quality, of the lightest practicable weight, and entirely suitable for the purpose intended. Unless otherwise specified, the materials and components, e
27、xcept for the metallic parts (excluding the carbon dioxide cylinder), used in the construction of the life raft, shall have been manufactured not more than 18 months prior to the date of delivery of the life raft (see 6.2.1i(). 4 Provided by IHSNot for ResaleNo reproduction or networking permitted w
28、ithout license from IHS-,-,-MIL-L-IILH 9999906 2058354 T W MIL-L-9131H 3.4 Design and construction. The size, shape, color, arrangement and con- struction of the twenty man life raft assembly shall conform to applicable drawings specified in Section 2. 3.4.1 Cut edges. All the cut edges of the uncoa
29、ted nylon fibrous materials, except for the base cloths which are to be coated, shall be seared prior to the fabrication of the life raft to prevent fraying. No sharp edges shall be formed. 3.4.2 Use of the adhesive. In all the cementing operations, the surface to which the adhesive is to be applied
30、 shall be thoroughly cleaned with a suitable solvent in such a manner that the dusting materials (zinc stearate or talc) and any other surface contaminant is removed. Care should be exercised to insure that the coating and the base undercloth are not posure to the solvent. application of the adhesiv
31、e and shall leave no residue. Cemented areas shall not contain trapped air, channels or wrinkles. The adhesive shall be controlled to insure that old adhesive or adhesive which has partly or completely polymerized is not used. A fresh batch of the adhesive shall be used at least every eight hours du
32、ring the course of manufacture. Containers for the adhesive shall be free from congealed adhesive before being refilled. The surface shall be clean prior to cementing. b damaged and the adhesion between both is not impaired in any way by prolonged ex- The solvent used shall evaporate completely prio
33、r to the 3.4.3 Cementing of the seams, seam tapes, patches and attachments. The con- struction of the seams and sealing areas and the attaching of the seam tapes, patches and attachments shall be undertaken utilizing the technique and precautions outlined in 3.4.2 so that, prior to the inspection of
34、 the assembled life raft, the adhesive shall have developed its optimum bonding properties and the adherence of all such seams, sealed areas, seam tapes, patches and attachments shall comply with the requirements of this specification. All the seams, seam tapes, patches, sealed areas and the attachm
35、ats shall be secured by the adhesive specified in the appli- cable drawings. The seams shall be covered on the inner and outer sides with seam tape as specified in Drawing 63A80H1. seams without tension and shall be applied so that a minimum of 3/8 inch of seam tape is on either side of the seam edg
36、e which it covers. tachents shall be applied to the life raft without tension. opening in the base patch reinforcing the attachment of the equalizer tube shall coincide with the opening in the equalizer tube. straight line parallel to the edges of the seam tapes, seams, patches and attach- ments and
37、 shall extend from just being visible to a maximum of 1 inch beyond the seam, seam tape or attachment edges. seams, or where one end of the seam tape comes in contact with the other end of the same seam tape, shall overlap on itself at the ends 3/4, plus 1/2, minus O inch. The overlap for the cement
38、ed seams shall be in accordance with the applicable drawings. The adhesive shall not be allowed to remain in clots nor permitted to extend in such a manner as to result in localized stiffness. The adhesive upon drying or curing shall not cause the cloth, seam tapes, and attachments to shrink or puck
39、er at any point on the life raft. masses of the adhesive and spots or stains resulting from excess adhesive. All the seam tapes shall be applied to the All the patches and at- The internal diameter The adhesive shall be applied in a The seam tapes which seal circumferential The life raft shall be fr
40、ee from congealed 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-nIL-L-SL3LH = 9999906 2058355 913 D MIL-L-9131H 3.4.4 Seams and stitching. No stitching shall be used in any of the life raft Sewing may only be used in the construction of the acces
41、sory parts but not seams, through the cloth of any air retaining chamber, or through the life raft floor. in their final attachment to the life raft. cessory parts shall be accomplished as specified in the applicable specification and drawing. The ends of the stitching shall be backstitched, by over
42、lapping on itself, a minimum of 1/2 inch. Thread breaks, skips and run-Offs shall be over-stitched not less than one inch. The thread tension shall be maintained so that there shall not be any loose or tight stitching and the lock shall be embedded in the materials sewn to- gether. No seam shall be
43、twisted, puckered or pleated and no portion of the ac- cessory parts shall be caught in an unrelated operation or seam. All the thread ends shall be trimmed to a length of 1/4 inch maximum. properly forced out and shall not contain any folds. All the machine stitching in the ac- Each row of stitchin
44、g shall be straight and parallel to the seam edge. The seam edges shall be 3.4.4.1 Bartacking. The number of stitches per bartack shall be based pro- portionally on 1/4 inch long bartack containing a minimum of 14 stitches. length and location of each bartack shall be as specified in the applicable
45、speci- fication or drawing. The 3.4.5 Inflatable life raft. Each twenty man life raft assembly shall contain one inflatable life raft fabricated in accordance with Drawing 63A80H1. 3.4.5.1 Inflatable tubes. The cloth sections used in the inflatable tubes shall be incorporated in such a manner that t
46、he warp threads of the straight cloth run in a circumferential direction around the tubes and the warp threads of the bias cloth run in the opposite direction in the adjoining sections. The floor shall be at- tached and located between the flotation tubes without tension and with sufficient slack to
47、 prevent distortion of the tubes, when the raft is inflated. shall be of such size that the attached portion shall extend 4 inches past the centerline of the inflatable tubes as shown in Drawing 63A80H1. the life raft floor to the flotation tubes shall be reinforced on the upper and lower sides with
48、 the seam tape along the inside tangent line around the entire periphery of the life raft as in Drawing 63A80H1. the tubes shall also be reinforced on the outer side of the raft with the seam tape along the outer tangent line around the entire periphery of the life raft as in Drawing 63A80Hl. reinfo
49、rced with the seam tape as in the Drawing 63A80H1. The floor The attachment of The attachment of the floor to The outer edge attachment of the floor to the tube shall be 3.4.6 Equalizer clamp. One end of a 5-foot length of the nylon cord conforming to MIL-C-5040, type I, shall be securely tied to the equalizer clamp, conforming to Drawing 53B6244, with a bowline knot. grommet in the equalizer clamp pocket with bowline knot. The other end shall be securely
