1、a O 18 Janbary 1990 SUPERSEDING MIL-S-44097 18 March 1983 MILITARY SPECIFICATION SUSPENSION ASSEMBLY, GRO TROOPS - PARACHUTISTS HELMEX This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers one type of suspen
2、sion assembly for the ground troops parachutists helmet. .1.2 Classification. The suspension assembly shall in the following sizes as specified (see 6.2). x-small (XS) small (S) Medium (M) Large (LI X-Large (a) 2. APPLICABLE DOCUMENTS 2.1 GOVKKIItexIt documents. Beneficial ccmnents (reccmwndations,
3、additions, deXetiorrs) a distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-44077A 84 = 777770b 03664b7 MIL-S-44097A 2.1.1 Specifications, standards and handbooks. The following specifications, standards, and handbooks f
4、orm a part of this document to the extent specified herein. documents are those listed in the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). Unless otherwise specified, the issues of these SPEIFICATIONS FEDERAL PPP-B-
5、26 - Bag, Plastic (General Purpose) PPP-B-636 - Boxes, Shipping, Fiberboard PPP-T-45 and Securing - Tape, Gurmted, Paper, Reinforced and Plain, for Sealing MILITARY MIL-L-35078 - Loads, Unit: Preparation Of Semiperishable Subsistence Items; Clothing, Personal Equipent and Equipage; General Specifica
6、tion For STANDARDS MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection MIL-STD-129 - Marking for Shipnent and Storage MIL-STD-147 - Palletized Unit Loads MIL-STD-731 - Quality of Wood Members for Containers and Pallets by Attributes (Unless otherwise indicated, copies of federal and
7、 military specifications, standards and handbooks are available frm the Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.1.2 Other Goverment documents, drawings, and publications. The following other goverment documents, drawings and publications fo
8、rm a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation. DRAWINGS U.S. ARMY NATICK RESEARCH, DEVELOPMENT, AND ENGINEERING CENTER 2-1-1386 - Suspension Assembly, Ground Troops - Parachutists Helmet (Copies of drawings are a
9、vailable frm the U.S. Army Natick Research, Development and Engineering Center, AWN: STRNC-EMSS, Natick, MA 01760-5014.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-LI4077A 8LI 7779906 03661168 T W MIL-S-44097A 2.2 Non-GoVertment publicat
10、ions. The following document forms a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD adopted are those listed in the issue of khe D0f)ISS cited in the solicitation. -of documents not listed in the DODISS are the issues of th
11、e documents cited in the solicitation (see 6.2). Unless otherwise specified, the issues AMERICAN SOCIEXY MIR TESTING AND MATERIALS (ASTM) D 3951 - Standard Practice for Comnercial Packaging (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Stree
12、t, Philadelphia, PA 19103-1187.) (Non-Governnent standards and other publications are normally available fran -organizations that prepare or distribute the documents. may be available in or through libraries or other informational services.) These documents also 2.3 Order of precedence. In the event
13、 of a conflict between the text of this document an the references cited herein, the text of this document takes -precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a cpecific exemption has been obtained. 3. REQUE-TS 3.1 First article. Wen specified (see
14、 6-21, a sample shall be subjected to first article inspection (see 6.3) in accordance with 4.3. 3.2 Guide sample. Guide sanples, when furnished are solely for guidance and information to the contractor (see 6.4). Variations from this specification may appear in the sample, in which case this specif
15、ication shall govern. 3.3 Materials and mmponents. The materials and components shall be as specified on Drawing 2-1-1386. tlere practical as long as it meets the requirements of this specification. black marking shall be placed inside the polyethylene bag specified in 5.1.1 so that the label can be
16、 read through the bag. The label paper shall be made of consnercial quality white writing or printing paper, having a minimum basis weight of 20 pounds (17 x 22/500). information: It is encouraged that recycled material be used A white paper label with legible and durable 3.3.1 Identification markin
17、g. The paper label shall contain the following Iten description (approximately 1/4 inch) Contract number (approximately 1/4 inch) Stock ncnnber (approximately 1/4 inch) Contractors name (approximately 1/4 inch) 3.4 Design and construction. The design and construction of the suspension assembly shall
18、 be as specified herein, and as shown on Drawing 2-1-1386, and all subsidiary drawings and parts lists. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-44077A 4 M 7799706 0366469 1 H . MIL-S-44097A 3.4.1 Stitching. All stitching shall be as -
19、 specified . on Drawing 2-1-1386 3.4.2 Thread tension. and herein. Thread tension shall bemaintained so that there will be no loose stitching.resulting in loose bobbin or top thread, or excessively tight stitching resulting in puckering of the materials sewn. The lock shall be embedded in the materi
20、als shown, 3.4.3 Repairs of type 301 stitching. Repairs of type 301 stitching shall be r as follows: * a. When a thread break or bobbin run-out occurs during sewing, the stitching shall be repaired by restarting a minimum of 1/2 inch back of the end of the stitching. - i/ stitches noted during inspe
21、ction of the item (in-process or end item) shall be repaired by overstitching. The stitching shall start a minimum of 1/2 inch in back of the defective area, continue over the defective area, and continue a minimum of 1/2 inch beyond the delective stitching. b. Any thread break or two or more consec
22、utive skipped or runoff - i/ When making the above repairs the ends of thestitching are not required to be back stitched. 3.4.4 Automatic stitching. Automatic stitching machines may be used to perform any of the required stitch patterns provided the requiranents for the stitch pattern, stitches per
23、inch, size and type of thread are met, and at least three or more tying, overlapping, or back stitches are used to secure the ends of stitching. 3.4.5 Thread ends. All thread ends shall be trimed to a length of not mare than 1/4 inch. 3.4.6 Fusing of nylon webbing and cord. All ends of the nylon web
24、bing and cord, and all slots in the nylon webbing, shall be fused as specified on Drawing 2-1-1386. 3.4.7 Setting of eyelets. Holes for setting eyelets in nylon webbing shall be prepunched and shall be smaller than the outside diameter of the eyelet barrel so that the barrel must be forced through t
25、he hole. be securely clinched without cutting the adjacent material and no more than one split shall occur in the eyelet or washer barrels. The eyelets shall F 3.4.8 Repairs. Except as otherwise specified herein, repairs are not allowed to be made to the suspension assembly. r 3.4.9 Replacement of d
26、efective cmponents. During the spreading, cutting, and manufacturing process, components having material defects or damages that are classified as defects in 4.4.3 shall be rmoved from production and replaced with non-defective and properly matched components. 4 Provided by IHSNot for ResaleNo repro
27、duction or networking permitted without license from IHS-,-,-. RIL-S-44077A 4 7999906 0366470 M MIL-S-4 409 7A 3.5 Worlananship. The suspension assembly shall conorm to the quality of product established by this specification. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless
28、 otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other faciliti
29、es suitable for the performance of the inspection requirements specified herein, unless disapproved by the Goverment. inspections set forth in this specification where such inspections are deemed necessary to ensure supplies and services conform to pxescribed requirements. 4-1-1 Responsibility for c
30、ompliance. All itens shall meet all requirements of sections 3 and 5, become a part of the contractors overall inspection systan or quality program. The absence of any inspection requirement in the specification shall not relieve the contractor of the responsibility of ensuring that all products or
31、supplies submitted to the Government for acceptance comply with all requirements of the contract. operations, ia an acceptable practice to ascertah conormance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, nor does it cmit the Go
32、vertment to accept defective material . The Goverment reserves the right to perform any of the The inspection set forth in this specification shall Sampling inspection, as part of manufacturing 4.1.2 Responsibility for dimensional requirenents. Unless otherwise specified in the contract or purchase
33、order, the contractor is responsible for ensuring that all specified dimensions have ken met. When dimensions cannot be examined on the end itan, inspection shall be made at any point or at all points in the manufacturing procesa necessary to ensure cmpliance with all dimensional requiretnents, 4.2
34、Classification of inspections. 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 Firnst article inspection. When a first article is r%piired (See 3.1 and 6.2), it shall be examined for the de
35、fects specified in 4.4.3 and 4.4.4. 4.4 Quality conformance inspection, Unless otherwise 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, components and materials shall be inspected in accordance
36、with all the requirements of referenced documents unless otherwise excluded, amended, modif i edge Any end of webbing not fused Any hole, cut, or tear 201 202 frayed or scalloped 102 103 Hooks flattened, broken, or missing impairing function Any cut or frayed area 104 Clinched loosely, permitting ei
37、ther 105 Clinched excessively tight, cutting 106 Washer anitted 107 Two or more splits in eyelet or cmpnent to rotate freely adjacent material 203 washer barrel Seams and stitching: Open seam up to and including 1/2 inch More than 1/2 inch A seam shall be classified as open when one or more stitches
38、 joining a seam are broken or when two or more consecutive skipped or runoff stitches occur. Loose, resulting in a loose top Excessively tight, resulting in Note: Stitch tension or bobbin thread puckering of material 6 204 108 7 6 205 206 Provided by IHSNot for ResaleNo reproduction or networking pe
39、rmitted without license from IHS-,-,-. MIL-S-44097A 84 7979906 0366472 L O a a MIL-S-44097A TABLE I. End iten visual defects (contd) Classification Examine Defect Major Minor Seams an stitching (contd) Stitch typ Stitches per inch Stitching ends Thread breaks, skipped stitches or runoffs Note: Rows
40、sf stitching Cmponents etand assembly Identification and size marking Cleanness Incorrect stitch type 109 One stitch less than minimum specified Two or more stitches less than minimum specif ied One or more stitches in excess of maximum specif ied 110 Ends of stitching not secured as specified (exce
41、pt when caught in other stitching ) Thread break or two or mor? consecutive skipped or runoff stitchec, overstitched less than 1/2 inch in each direction beyon theefective stitching area Thread breaks or two or more consecutive skipped or runoff stitches not overstitched shall be classifid as open s
42、eams. Any row omitted my required component or operation omitted (unless otherwise classified herein) Any compsnentmisplaced or not assembled as specified (unless otherwise classified herein) Needle chews Any unauthorized repair mitted, incorrect, illegible or misplaced or size of characters not as
43、specified Spots or stains clearly noticeable thread ends not trim incorrect; illegible; of improper size; and interior) location, sequence, or method of application Ma ter i als Any componentmissing, damaged, or not as specified workmanship Content Inadequate application of components, such as: inco
44、mplete sealing or closure of flap, improper taping, loose strapping or inadequate stapling Bulged or distorted container Number of bundles per shipping container is more Number of suspension assgnblies per bundle is more or less than specified or less than required - i/ - i/ For this defect, one bun
45、dle fran each shipping container in the sample shall be examined. 4.4.6 Palletization examination. The fully packaged and palletized end The sample unit shall be one items shall be examined for the defects listed below. expressed in units of palletized unit loads. palletized unit load, fully package
46、d. AQL, expressed in terms of defects per hundred units, shall be 6.5. The lot size shall be The inspection level shall be S-l. The Examine Defect Finished dimensions Length, width, or height exceeds specified maximum requirement Pallet pattern not as specified Interlocking of loads not as specified
47、 Load not bonded as specified Palletization 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Examine . Weight MIL-S-94097A 9 9999906 0366974 5 M MIL-S-44097A Defects Exceeds maximum Load limits Mark i ng mitt&; incorrect; illegible; of improper size
48、, location, sequence, or mthod of application * 5. PACKAGING 5.1 Preservation. Preservation shall be level A or Cmrcial, as specified (see 6.2). 5.1.1 Level A preservation. 5.1.1.1 Unit packing. Ten suspension assemblies nested within each other along with the paper label specified in 3.3.1 (with ma
49、rking facing the outside of the bag) shall be unit packed in a clear bag conforming to type I or II, style 1 or 2 of PPP-B-26. 5.1.1.2 Intermediate packing. Twenty unit packs, as specified in 5.1.1.1, of one size only shall be packed on edge one in length, four in width, and five in depth in an intermediate fiberboard box conforming to style RSC; type CF (variety Si), class danestic, grade 20 of PPP-B-636. dimensions of each intermediat
