1、y s-15- q7 t -CL=- _- _ _- MIL-H-I500A 4 W 9777706 0404864 I W MIL-H-81500A(AS) 15 October 1982 SUPERSEDING MIL-H-81500 (AS) 23 September 1966 MILITARY SPECIFICATION HOOD, ANTI-EXPOSURE COVERALL This specification is approved for use by the Naval Air Systems Command, Department of the Navy, and is a
2、vailable for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers requirements for one type and size of an anti-exposure coverall hood. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. Unless
3、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) specified in the solicitation form a part of this specification to the extent specified herein. SPECIFICATIONS FED
4、ERAL PPP-B-636 - Boxes, Shipping, Fiberboard. PPP-T-45 - Tape, Gummed, Paper, Reinforced and Plain, for Sealing and Securing. STANDARDS MILITARY MIL-STD-105 Sampling Procedures and Tables For Inspection by Attributes. MIL-STD-129 - Marking for Shipment and Storage. NIL-STD-130 - Identification Marki
5、ng of U.S. Military Property, Beneficial comments (recommendations, additionsxtions) and2ny 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, Lakehurst, NJ 08733, by using
6、 the self-addressed Standardization Document Improve- ment Proposal (DD Form 1426) appearing at the end of this document or by letter. - YY ” Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - I MIL-H-8LSOOA 84 m 799770b 0904865 3 m MIL-H-8 1500A (AS
7、) I 2.1.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this specifi- cation to the extent specified herein. DRAWINGS NAVAL AIR SYSTEMS COMMAND 1414ASlOl - Hood Assembly, Anti-Exposure Coverall. (Copies of
8、specifications, standards, handbooks, drawings, and publications required by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) I 2.1.3 Order of.precedence. In the event of a conflict between th
9、e text of this specification and the references cited herein, the text of this specification shall take precedence. 3. REQUIREMENTS 3.1 First article. When specified, a sample shall be subjected to first article inspection (see 4.3 and 6.2.1). I $- 3.2 Materials and components. Materials and compone
10、nts shall conform to appli- cable specifications, standards, and drawings as listed or required herein. Unless otherwise specified; the materials and components, except for the metallic parts, used in the construction of the anti-exposure coverall hoods shall have been manu- factured not more than 1
11、2 months prior to the date of delivery of the anti-exposure coverall hoods. 3.3 Design and construction. The design and construction of the anti-exposure coverall hood shall be in accordance with Drawing 1414AS101. 3.3.1 Cutting. The hood shall be cut-in strict accordance with the patterns furnished
12、 by the Government (see 6.4), which show direction of the cloth, size, shape, placement of the loop, patch, oral inflation assembly, snap fasteners, sewn eyelet, pile fastener tape and notches or markings for the proper assembly of all the parts. The Government patterns shall not be altered in any m
13、anner and shall be used for making the working patterns. patterns. lay. The directional lines shall be in the warp direction. The working patterns shall be identical to the Government furnished The compon-ent parts of each.hood shall be cut from the same ply of the 3.3.2 Shade marking. The component
14、 parts shall be marked or ticketed, by any commercial method, or bundled with the top ply of each individual component part marked with the bundle number, to insure a uniform shade and.proper assembly through- out the hood. Shade markings may be accomplished by the use of ink pad numbering machine,
15、rubber stamp, or pencil, provided the markings do not show through to the outerside of the hood and are not deleterious to the cloth. Markings placed on the seam allowance shall . not be visible on the outerside. Adhesive tape shade tickets may be used for the shade markings (see 3.3.2.1). The assem
16、bled hood shall not contain any shade mark- ing tickets. Metal fastening devices or sewn-on tickets shall not be used. 2 I - -. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-BLSOOA 81 7797706 04048bh 5 MIL-H-8 15 OOA (AS) 3.3.2.1 Adhesive sha
17、de tickets. Adhesive shade tickets shall Be fabricated from paper with a thermo-activated adhesive.applied on one side. The adhesive shall not discolor the cloth and the adhesive mass sha.11 not adhere to the cloth upon removal of.- the ticket, The heat used to attach the thermo-activated adhedve. t
18、ickets shall not .aeffEen, ha.rden, sea!: - ar:daaage.:.the. cloth; ln. anpznannex. . 3.3.3 Use of adhesive. In all the cementing operations, the surface to which the adhesive is to be applied shall be thoroughly cleaned with a suitable solvent in such a manner that the dusting materials (zinc stear
19、ate or talc) and any other sur- face contaminant is removed. should be exercised to insure that the coating and the base undercloth are not damaged and the adhesion between both is not impaired in any way by prolonged expo- sure to the solvent. The solvent used shall evaporate completely prior to th
20、e application of the adhesive and shall leave no residue, 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. course of manufacture. being refilled. The surface shall be clean prio
21、r to cementing. Care Cemented areas shall not A fresh batch of adhesive shall be used at least every 8 hours during the Containers shall be free from congealed adhesive before 3.3.4 Cementing of the seams and attaching of the component parts. The cement- ing of the seams and the attaching of the rei
22、nforcing patch, pile fastener tape and oral inflation assembly shall be undertaken utilizing the technique and precautions outlined in 3.3.3 so that, prior to the inspection of the assembled hood, the adhe- sive shall have developed its optimum bonding properties and the adherence of all .the seams
23、and attachment of all the component parts shall conform to the require- ments of this specification. without any tension. assembly reinforcing patch shall coincide with the opening in the base of the oral inflation assembly tube. to the edges of the seams and components and shall extend from just be
24、ing visible to a maximum of one half inch beyond the seams and components. or cured shall present a neat and uniform appearance, allowed to remain in clots nor permitted to extend in such a manner as to result in localized stiffness, which might result in discomfort to the wearer, when the hood is d
25、eflated or inflated. cloth and attachment to shrink or pucker at any point on the hood. shall not be allowed to run over the edges of the hood to form stiff or hard needle points and all the edges around the periphery of the hood, both inside and out, shall be free from sharp points or ragged edges.
26、 inflation valve and the hood shall be free from congealed masses of the adhesive and spots or stains resulting from excess adhesive. The seams shall be formed and the components attached The internal diameter of the opening in the oral inflation The adhesive shall be applied in a straight line para
27、llel The adhesive when dry The adhesive shall not be The adhesive upon drying or curing shall not cause the The adhesive The external portion of the oral 3.3.5 Seams and stitching. No stitching shall be used in any of the hood seams or through the cloth of the inflatable portion. Sewing shall be use
28、d only in the sewn eyelet. The sewn eyelet shall contain a minimum of 25 stitches. The number of stitches per eyelet shall be determined by counting the number of needle penetra- tions in the outer diameter of the eyelet. included, when determining the number of stitches per eyelet. constructed with
29、 Stitch Type 401, 502 or 503. When Stitch Type 401 is used, the The overlapping stitches shall also be The eyelets shall be 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ MIL-H-BLSOOA 84 9999906 0404867 7 MIL-H-81500A(AS) purling shall be locate
30、d on the innerside of the hood, When Stitch Type 502 or 503 is used, the outerside purling shall be located on the outer diameter of the eyelet and the innerside purling shall not be pulled to the outerside of the hood. The thread ends shall be on the innerside of the hood. The size and location of
31、the eyelet shall be as specified in Drawing 1414AS101 and the patterns, 3.4 Color. The color of the anti-exposure hood and the components shall be as specified on the applicable drawing. as specified in 4.6.1. The color shall be compared to the standard 3.5 Markings. The markings on the hood shall b
32、e in accordance with MIL-STD-130 and Drawing 1414AS101. 3.5.1 Serial numbers. Serial numbers (required by Drawing 1414AS101) shall-be assigned by tke manufacturer. numbers to cover the entire acquisition document quantity (see 6.2.le). Serialization shall be by a block of consecutive 3.6 Performance
33、 inspection, 3.6.1 Leakage. When inspected as specified-in 4.6.3, the pressure in the hood shall not drop below 1.5 inches (water column). The seams and attachments shall . remain perfectly intact and shall show no indication of separation. There shall be no evidence of constructional or material fa
34、ilure in any respect. There shall be no evidence that the air entering the hood chamber is hindered by the misplacement of the reinforcing patch or that the front or back of the oral inflation valve or the opening in the oral inflation tube is blocked by excess adhesive, zinc stearate, talc, or othe
35、r foreign matter. difficulty, shall shut off the flow of air completely, and shall not be blocked by an excess adhesive, talc, zinc stearate, or other foreign matter, or by damage to- the oral inflation valve due to clamping together of the oral inflation valve and tube. the bond between the oral in
36、flation valve and tube shall remain perfectly intact. The oral inflation valve shall operate without The attachment of the flange end of the oral inflation tube to the hood, and 3.7 Workmanship. The snap fasteners shall be securely clinched without distor- tion, cracking, splitting, or cutting of th
37、e cloth. The hood shall be free of holes, tears, cuts, mends, spots, or stains. The metal components shall not be misaligned or contain any nicks, burrs, metal slivers, cracks, or sharp edges, Because of the emergency and life support use of this hood, the importance of providing a product of unifor
38、mly excellent quality cannot be overemphasized. hoods shall be uniform in quality and shall be free from irregularities or defects which could adversely affect performance, reliability, or durability. The hoods shall conform to the quality and grade of product established by this specifica- tion. Th
39、e occurrence of defects shall not exceed the acceptance criteria estab- lished herein. The 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspec- tion requiremen
40、ts as specified herein. Except as otherwise specified in the con- tract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, un- less disapproved by the Government: The Government reserves the right to
41、 perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i PlIL-H-l500A 84 7777706
42、 OLIOLIb 7 W MIL-H-81500A (AS) 4.1.1 Test equipment and inspection facilities. The manufacturer shall insure that test and inspection facilities of sufficient accuracy, quality and quantity are established and maintained to permit performance of required inspections. 4.2 Classification of inspection
43、. The inspection requirements specified herein are classified as follows: a. First article inspection. First article inspection consists of examinations and tests performed on samples which are representative of the production item after the award of a contract to determine that the production item
44、meets the requirements of this specification (see 4.3). b. Quality conformance inspection. Quality conformance inspection con- sists of examinations and tests performed on individual products or lots to determine conformance of the products or lots with the re- quirements set forth in this specifica
45、tion (see 4.4). 4.3 First article inspection. The first article inspection of the anti-exposure coverall hoods shall consist of examinations and tests for all of the requirements of this specification. 4.3.1 First article samples Unless otherwise specified, as soon as practi- cable after the award o
46、f the contract or order, thesmanufacturer shall submit three hoods. The samples shall be representative of the construction, workmanship, components and materials to be used during production. continuous production of these hoods from contract to contract, submission of further first article samples
47、 on the new contract may be waived at the discretion of the acquiring activity (see 6.2.ld). Approval of the first article samples or the waiving of the first article inspection does notwaive the requirements for performing the quality conformance inspection. The first article samples shall be forwa
48、rded as specified in the contract or order (see 6.2.lf). plainly identified by securely attached durable tags marked with following in- formation: When a contractor is in The samples shall be Samples submitted by (name) (date) for first article inspection in ac- cordance with .the requirements of PI
49、L-H-81500A(AS) under contract no. 4.3.2 .First article .sample approval. Uponcompletion of the first article inspection program, pertinent comments and recommendations will be forwarded by the cognizant Government activity responsible for conducting the inspectionprogram (see 6.2.lf) to the contracting officer. One approved hood will be returned to the manufacturer for use in monitoring production. sumed or destroyed in the first article inspection and shall not be cons
