1、 DETAIL SPECIFICATION NECK SEAL, FLYERS, ANTI-EXPOSURE, RUGGEDIZED This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for two types of flyers ruggedized anti-exposure neck seals. 1.2 Clas
2、sification. The neck seal is furnished in one size for each type as specified (see 6.2): Type I Mens Type II Womens 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents cited in othe
3、r sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3 and 4 of this specificatio
4、n, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications and standards. The following specifications and standards form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or co
5、ntract. Comments, suggestions, or questions on this document should be addressed to: Commander, Naval Air Warfare Center Aircraft Division (Code 414100B120-3), Highway 547, Lakehurst, NJ 08733-5100 or emailed to Tom.Omaranavy.mil. Since contact information can change, you may want to verify the curr
6、ency of this address information using the ASSIST Online database at www.dodssp.daps.mil. AMSC N/A FSC 8475MIL-DTL-32145 30 June 2004 NOT MEASUREMENT SENSITIVE Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32145 2 COMMERCIAL ITEM DESCRIPTIO
7、N A-A-50195 - Thread, Aramid DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-DTL-32149 - Cloth, Waterproof, Flame Resistance, Moisture Vapor Permeable (Copies of these documents are available online at assist.daps.dla.mil/quicksearch or www.dodssp.daps.dla.mil or from the Standardization Document Order Des
8、k, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.2.2 Other Government drawings. The following Government drawings form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract.
9、 NAVAL AIR SYSTEMS COMMAND (NAVAIR) 3769AS110 - Neck Seals, Flyers Ruggedized Anti-Exposure 3769AS111 - Neck Seals, Gasket, Anti-Exposure (Copies of these drawings are available online at http:/ct.dscp.dla.mil/contracting/, or from Defense Supply Center Philadelphia, Code CBTC Bldg. 6, 700 Robbins A
10、venue, Building 4D, Philadelphia, PA 19111-5094.) 2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. AMERICAN SOCIETY FOR QUAL
11、ITY (ASQ) ASQ-Z1.4 - Procedures, Sampling, and Tables for Inspection by Attributes. (DoD adopted) (Copies of this document are available from www.asq.org or the American Society for Quality, 600 Plankinton Avenue, Milwaukee, WI 53203.) Provided by IHSNot for ResaleNo reproduction or networking permi
12、tted without license from IHS-,-,-MIL-DTL-32145 3 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) INTERNATIONAL ASTM-D297 - Rubber Products Chemical Analysis, Standard Test Methods for. (DoD adopted) ASTM-D395 - Rubber Property Compression Set, Standard Test Methods for. (DoD adopted) ASTM-D412 -
13、Vulcanized Rubber and Thermoplastic Elastomers Tension, Standard Test Methods for. (DoD adopted) ASTM-D573 - Rubber Deterioration in an Air Oven, Standard Test Method for. (DoD adopted) ASTM-D624 - Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers, Standard Test Method for
14、. (DoD adopted) ASTM-D6193 - Stitches and Seams, Standard Practice for. (DoD adopted) (Copies of these documents are available from www.astm.org or ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) 2.4 Order of precedence. In the event of a conflict between the text of th
15、is document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample shall be subject
16、ed to first article inspection in accordance with 4.2 (see 6.3). 3.2 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the operational an
17、d maintenance requirements, and promotes economically advantageous life cycle costs. 3.3 Materials and components. Unless otherwise specified in the contract or purchase order (see 6.2), the material and components specified in 3.3.1 and 3.3.2 shall not have been manufactured more than 18 months pri
18、or to the date of delivery of the neck seal(s). 3.3.1 Laminated cloth attachment panel. The base cloth for the laminated cloth attachment panel shall be in accordance with MIL-DTL- 32149. 3.3.2 Latex seal. The latex for the neck seal (see 6.5) shall be natural polyisoprene rubber, 30/1000 inch thick
19、, conforming to table I when tested as specified in 4.4.1. The color shall be black. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32145 4 TABLE I. Latex rubber CHARACTERISTIC REQUIREMENT Specific gravity .93 .05 Puncture propogation (lbs,
20、min) 250 Tensile strength (psi, min) 3500 Ultimate elongation (%, min) 760 100% Modulus (psi) 120 20 300% Modulus (psi) 240 50 Heat aging Elongation change (%) 25 Tensile strength change (%) 25 Compression set (%, max) 50 3.3.3 Thread. The thread for stitching the neck seals shall be green aramid th
21、read conforming to A-A-50195. The color shall match the material specified in 3.3.1. 3.4 Design. The neck seal shall be a stretchable latex gasket with a tape sealed seamed attachment panel. 3.5 Patterns. The Government furnished patterns (see 6.4) which show directional lines, and notches for assem
22、bly and seam allowances, shall not be altered in any way. The furnished Government patterns shall be used as a guide for cutting the working patterns. Minor modifications of the working patterns are permitted when using automated equipment or to meet a manufacturers process, but the alterations shal
23、l not affect the serviceability, dimensions, or appearance of the neck seal. 3.5.1 List of pattern parts. The pattern parts and cutting quantities for the neck seal shall be as specified in table II. TABLE II. Pattern parts MATERIAL PATTERN NOMENCLATURE COMPUTER NOMENCLATURE CUT PARTS Laminated clot
24、h Neck Attachment Panel NECKATHPNL 1 3.6 Construction. The neck seal shall be constructed in accordance with drawings 3769AS110 and 3769AS111. 3.7 Marking. Cut parts shall be marked, ticketed, or bundled to ensure a uniform size throughout the seal. Any method of marking shall be used except metal f
25、astening devices, sewn Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32145 5 on tickets, or adhesive type tickets that leave traces of adhesive on the material after removal of the ticket. 3.8 Stitches, seams, and stitching. ASTM-D6193, Sti
26、tch Type 301, with 6 to 8 stitches per inch shall be used in the construction of the laminated cloth attachment panel. Seams shall be as specified in construction drawings (see 3.6). 3.9 Heat sealing. All sewn seams and stitching shall be covered on the inside of the neck seal and sealed with the se
27、am tape. The entire width of the seam tape shall be heat sealed over the seams and stitching. Crossover areas and ends left unsealed after heat sealing shall be taped. To maintain a tape overlap, sealed sewn seams shall not contain more than two layers of seam tape per seam. The tape shall not lift
28、from the seam at any point. End joints where the tape passes over taped seams on the neck seal shall be avoided. The overlap of splicings and tape ends shall be not less than inch. 3.10 Finished dimensions. The finished neck seal dimensions shall be as specified in table III. A tolerance of 3/16 inc
29、h shall be used for all table III dimensions. The neck seal shall be measured flat. Locations A, B, C, D and E are shown on figure 1. TABLE III. Finished dimensions LOCATION LOCATION NAME MEASUREMENT (INCHES) A Attachment Panel Center Front Length 1 3/4 B Attachment Panel Center Back Length 1 3/4 C
30、Attachment Panel Shoulder Length 2 1/8 D Attachment Panel Width across shoulder 15 1/2 E Neck Opening (inside at shoulder) 11 3.11 Markings. 3.11.1 Identification. Each neck seal shall contain identification markings conforming to drawing 3769AS110. 3.12 Workmanship. The finished neck seal shall be
31、uniform in quality and free from loose thread, foreign matter, and irregular defects that can adversely affect usage or durability. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32145 6 FIGURE 1. Neck seal dimensions Note: 1. Depicts table
32、III locations, and is for informational purposes only. 2. Not to scale. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32145 7 4. VERIFICATION 4.1 Classification of inspections. The inspection requirements specified herein are classified as
33、follows: a. First article inspection (see 4.2). b. Conformance inspection (see 4.3) 4.2 First article inspection. First article inspection shall consist of the examinations and tests specified in 4.4.1, 4.4.2, 4.4.3, and 4.4.4. 4.2.1 First article samples. Unless otherwise specified in the contract
34、or purchase order (see 6.2), the number of samples for first article inspections shall be one neck seal for each type ordered. The sample unit shall be one neck seal and the lot size shall be expressed in units of neck seals. 4.3 Conformance inspection. Conformance testing shall consist of the exami
35、nations specified in 4.4.1, 4.4.2, 4.4.3, and 4.4.4. 4.3.1 Conformance inspection samples. Sampling for inspection shall be performed in accordance with ASQ-Z1.4. The sample unit shall be one neck seal and the lot size shall be expressed in units of neck seals. 4.4 Examinations and tests. 4.4.1 Mate
36、rial and component examinations and tests. Materials and components shall be examined and tested in accordance with the specified examinations and tests in table IV. TABLE IV. Materials and components examinations and tests MATERIAL CHARACTERISTIC REQUIREMENT PARAGRAPH EXAMINATIONS AND TESTS Laminat
37、ed cloth Material identification 3.3.1 All examinations and tests specified in MIL-DTL-32149 Latex Specific gravity 3.3.2 ASTM-D297, hydrostatic method Puncture propagation 3.3.2 ASTM-D624, Die C, 20 in/min Tensile strength 3.3.2 ASTM-D412, Method A, Die D, 20 in/min Ultimate elongation 3.3.2 ASTM-D
38、412, Method A, Die D, 20 in/min 100% modulus 3.3.2 ASTM-D412, Method A, Die D, 20 in/min Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32145 8 TABLE IV. Materials and components examinations and tests Continued. MATERIAL CHARACTERISTIC REQU
39、IREMENT PARAGRAPH EXAMINATIONS AND TESTS Latex Continued 300% modulus 3.3.2 ASTM-D412, Method A, Die D, 20 in/min Heat aging 3.3.2 ASTM-D573, 70 hrs, 158 F Elongation change 3.3.2 ASTM-D412, Method A, Die D, 20 in/min Tensile strength change 3.3.2 ASTM-D412, Method A, Die D, 20 in/min Compression se
40、t 3.3.2 ASTM-D395, Method B, 22 hrs, 158 F, 25 % deflection Thread Material identification 3.3.3 All examinations and tests specified in A-A-50195 4.4.2 Classification of end item defects. The end items shall be visually examined and measured for the defects specified in table V. TABLE V. Classifica
41、tion of end item defects. CLASSIFICATION EXAMINE DEFECT CRITICAL MAJOR MINOR Any hole, scissor or knife cut, tear, mend, burn, or weakening defect such as multiple floats, slubs, skips, needle chew or abraded area. 101 Any evidence of fabric delamination. 102 Any spot or stain (compound, oil, dirt,
42、including marks) clearly visible. 201 Color of any component not as specified. 202 Any thread not trimmed to 1/16 inch and not covered by heat sealed seam tape. 103 Any thread not trimmed to 1/16 inch or thread scraps not removed. 203 Any damaged tape edges greater than 1/16 inch from outside edge.
43、204 General Material and components more than 18 months old. 1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32145 9 TABLE V. Classification of end item defects Continued. CLASSIFICATION EXAMINE DEFECT CRITICAL MAJOR MINOR Any defective com
44、ponent or defect that will affect the form, fit, or function of the assembly. 104 Any component part or operation omitted, not as specified, or required operation improperly performed. 105 Components and assembly Any component part not cut in accordance with the patterns. 106 Any seam tape not locat
45、ed as specified. 107 Any stitching not covered by seam tape. 108 Heat sealing Any spliced tape not overlapped 3/4 inch. 109 Seams and stitching Any seam or attachment of any component twisted, puckered, pleated or caught in any unrelated operation or stitching that is not properly forced out or cont
46、ained in a fold more than 1/8 inch. 110 End of stitching not securely backstitched for at least 1/2 inch when not caught in other seams or stitching. 111 Thread breaks, skips and run-offs not securely overstitched for at least 1/2 inch. 112 Any stitching irregular or unevenly gauged (greater than 50
47、% of the seam length or 4 inches, whichever is less). 113 Not specified seam or stitch type. 114 Loose tension resulting in a loose seam or tight tension resulting in breaking of stitches when normal pull is applied. 205 Stitches per inch - one or two stitches more or less than specified (to be scor
48、ed only when condition exists on 25% of the seam or more). 115 Stitches per inch - more than two stitches more or less than specified (to be scored only when condition exists on 25% of the seam or more). 116 Any open seam. 117 Provided by IHSNot for ResaleNo reproduction or networking permitted with
49、out license from IHS-,-,-MIL-DTL-32145 10 TABLE V. Classification of end item defects Continued. CLASSIFICATION EXAMINE DEFECT CRITICAL MAJOR MINOR Identification missing, incorrect, or illegible. 118 Identification marking Misplaced by more than 1 inch. 206 End item measurements Any dimension not within the specified tolerance. 119 4.4.3 End item dimensional ex
