1、I MIL-F-44425 83 9999906 0486361 0 m MIL-F-44425 (G) 31 July 1991 MILITARY SPECIFICATION FRAME SECPION, TENT, FISTE SOLDIEE CREW This specification is approved for use by the Natick Research, Develoyxnent, and Engineering Center, Department of the Army, and is available for use by all Departments an
2、d Agencies of the Department of Defense . 1, SCOPE 1.1 Scope. This specification covers a frame, equipped with a fabric frame bag, for the five soldier crew tent. 2. APPLICABLE lxxxmms 2.1 Government dccumnts. Z*l*l SDeC ifications, standards, and handbooks. The follawing specifica- Unless otherwise
3、 specified, the issues of these d0c;uments tions, standards, and handbooks form a part of this doczument to the extent specified herein. are those listed in the issue of the Departnent of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.
4、2). SPECIFICATIONS FEDERAL PPP-B-601 - Boxes, Wood, Cleated-Plywood PPP-B-636 - Boxes, Shipping, Fiber- Beneficial cmnts (recmndations, additions, deletions) and any pertinent data which my be used to improve this document should be addressed to: Center, Natick, MA 01760-5017 by using the Standardiz
5、ation D0C;ument Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. U.S. Army Natick Research, Developnent, and Engineering AMSC N/A FSC 8340 DISTRIEWTION STATEMENP A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduc
6、tion or networking permitted without license from IHS-,-,- MIL-F-44425 83 m 9999906 0486362 2 I MIL-F-44425 (GIL) STANDARDS MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes MIL-SID-129 - Marking for Shipnt and Storage MIL-STD-147 - Palletized Unit Loads (Unless othe
7、rwise indicated, copies of federal and military specifications, standards, and handbooks are available from the StanMization Documents Order Desk, Wzildhg 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.1.2 other Govenunent documents, drawinqs, and publications. The follawing other Governmen
8、t doc;uments, drawings, and publications form a part of this document to the extent specified herein, Unless otherwise specified, the issues are those cited in the solicitation. DRAWINGC U.SI ARMY NATICK RESJWFCH, DEVELXPMENT, AND ENGINEERING CENPER 5-4-7582 - Frame Assembly, Five Soldier Crew Tent
9、5-4-7604 - Bag Assembly, Frame (Copies of drawings are available from the U.S. Army Natick Research, Developnt, and Engineering Center, ATIW: STRNC-UX, Natick, MA 01760- 5017. ) 2.2 Non-Govemnt publications. The follawing documents form a part of this document to the extent specified herein. the iss
10、ues of the documents which are DOD adopted are those listed in the issue of the DODISS cited in the solicitation. the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). Unless otherwise specified, Unless otherwise specified, AMERICAN S0C
11、IE;TY FOR TESTING AND MATERIALS (AS?M) D 3951 - Standard Practice for Comiiercial Packaging (Application for copies should be addressed to the American Society for Wsting and Materials, 1916 Race Street, Philadelphia, PA 19103-1187.) (Non-Government standards and other publications are nomlly availa
12、ble from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informa- tional services.) 2 . 1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1. * MIL-F-44425 83 9999906 0
13、486363 4 .- i MIL-F-44425 (G) i- 2,3 order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this doCunient takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exempti
14、on has been obtained. 3.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection (see 6.3) in accordance with 4.3. 3.2 Materials. The materials for the frame and frame bag shall be as specified herein awi as sham on the applicable drawings. that recycled mat
15、erial be used when practical as long as it meets the requirements of this specification. It is encouraged 3.3 Constnicrtion. The construction of the frame and frame bag shall conform to the applicable drawings (Drawing 5-4-7582 for the frame aiid Drawing 5-4-7604 for the frame bag) and as specified
16、herein. 3.3.1 Weldinq. AU welding shall be amplete, sound, smooth, uniform, and free from burn-through area, pits, slag inclusion, porosity, crack, fracture, weld sptter, flash, or excess flux deposit. Rough or projecting edges shall be ground SMOoth prior to finishing. 3.3.2 Castinus and tubinq. 3.
17、3.3 Castings and metal tubing shall be clean and Ends of all stitching shall be backstitched or Thread tension shall be maintained so that there will be no I free from pits, blowholes and scale. 301 stitchinq. overstitczl/2 inch minimum except when caught in other stitching or turned under in a hem,
18、 loose stitching resulting in puckering of the materials sewn. The lock shall be embedded in the materials sewn, 3.3.3.1 Repairs of tm 301 stitchinq. Repairs of type 301 stitching shall be as follaws: a. When thread breaks or bobbin run-outs occur during sewing, the stitching shall be repaired by re
19、starting the stitching a minimum of 1 inch back of the end of the stitching. i/ b. Thread breaks or two or more consecutive skipped or run-off stitches noted during inspection of the item (in-process or end item) shall be repaired by overstitching. in Mck of the defective area (1/2 inch on box-x) an
20、d continue a minimum of 1 inch beyond the defective area on to the existing stitching. excessively tight stitching shall be repaired by removing the defective stitching, without damaging the materials, and restitching in the required mer. I/ The stitching shall start a minimum of 1 inch -se or 3- Pr
21、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I NIL-F-44425 83 = 999990b 04863b4 b i i 5 MIL-F-44425 (GL) t - c - i/ When making the above repairs, the ends of the stitching are not required to be backstitched. 3.3.4 Autanatic stitchinq. Automatic st
22、itching machines may be used to perform any of the required stitch patterns provided the requirements for the stitch pattern, stitches per inch, and size and tupe of thread are met, and at: least three or More tying, overlapping, or backstitches are used to secure the ends of stitching. 3.3.5 Thread
23、 ends. shall be trimned to a length of not more than 1/4 inch. being asseinbled/disassembled when tested as specified in 4.5.1. All thread ends that are visible on the finished item 3.4 Assembly/disassembly of frame. The frame assembly shall be capable of 3.5 WorkmanshiP. The frame and frame bag sha
24、ll conform to the quality of product established by this specification and the occurrence of defects shall not exceed the applicable acceptable quality levels. 4. QUATJTY ASSURANCE PRVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contract
25、or is responsible for the perfomiance 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 awn or any other facilities suitable for the perfor multiple or diameter 101 than 1/8 inch 10
26、2 floats clearly visible at normal inspection distance (approximately 3 feet) “E: Any opening larger than 1/8 inch shall be classified under one cut, tear or hole. 201 Hardware - general Any required component improperly installed causing failure to serve intered purpose 103 7 Provided by IHSNot for
27、 ResaleNo reproduction or networking permitted without license from IHS-,-,-: MIL-F-44425 83 999990b 0486368 3 H - P * MIL-F-44425 (GL) TABLE II. End item visual defects, frame baq (contd) Classification Major Minor Examine Defect AB seamsand stitching seamand stitch type open seams: - 1/2 inch or l
28、ess - more than 1/2 inch 301 104 WIE: A seam shall be classified as an open seamwhen one or more stitches joining a seam are broken, or when two or more consecutive skipped or runoff stitches occur. Not specified seam or stitch typ Seam twisted, pleated or badly puck- (unless otherwise classified he
29、rein) Any line of stitching not beginning or ending where specified (unless otherwise classified herein) Any seam not finished as specified 105 Raw edge (on edge required to be finished) More than 1/2 inch in length when securely caught in stitching Raw edge not securely caught in stitching shall be
30、 classified as an open seam. NE: Thread breaks, skipped stitches or runoffs n stitching other than box-x stitching, overstitched less than 1 inch in each direction beyond defective stitching area for 301 n box-x overstitched less than 1/2 inch in each direction beyorad the defective stitching area N
31、E: Thread breaks or two or more con- secutive skipped or runoff stitches not overstitched shall be classified as open seams. Boxstitching Incomplete : omitted - one row of stitching omitted - two or mre rows of stitching 8 202 203 302 303 304 305 306 307 Provided by IHSNot for ResaleNo reproduction
32、or networking permitted without license from IHS-,-,-4 MIL-F-44425 83 9999906 0486369 5 MIL-F-44425 (a) TABLE II. Erad item visual defects, frame baq (contd) Classification Major Minor Examine Defect AB Bartacking Bartacking less than specified length by more than 1/16 inch Stitching ends verstitche
33、d less than 1 inch on stitch type 301 (except where ends are held dawn by other stitching, turned under in a hem, or where stitching is performed automatically) Secured with less than 3 tying, over- lapping or backstitches when auto- matick stitching is performed Ram of stitching One or more require
34、d ruws of stitch- - affecting serviceability seriously - affecting serviceability but not ing oinitted: seriously One or more bartacks omitted Any bartack not as specified or not mse stitching, incmplete or broken in specified location Stitch tension Tension loose, resulting in loose Tension tight,
35、resulting in pucker- bobbin or top thread ing of material Stitches per inch Less than minimum specified: - one stitch - two or more stitches More than maximum specified: - one stitch - two or more stitches MYTE: Variation in the number of stitches per inch, caused by the operator speeding up the mac
36、hine in order to sw over heavy places or heavy seams or in tdng corners, shall be classified as follaws: a. Within the minor “A“ defect classification - minor “B1 defect 9 204 205 106 107 308 309 3 10 311 312 3 13 3 14 206 . 315 207 Provided by IHSNot for ResaleNo reproduction or networking permitte
37、d without license from IHS-,-,-I MIL-F-44425 83 PII 999990b 0486370 II U I 9 r TAEUX II. End item visual defects, frame baq (contd) Classification Major Minor AB Examine Defect Stitches per b. Within the minor “B“ defect classification - no defect inch (contd) Stitching margin Larger or smaller than
38、 specified by - for mre than 2 inches but not more than 4 inches in length - for mre than 4 inches in length mre than 1/16 inch: Components and Any component part omitted or not assembly fabricated of amlicable referenced material 108 General Cleanness Any other construction details Grease or oil st
39、ains Thread ends not trimned to not performed as specified 109 1/4 inch or less 316. 208 3 17 318 4.4.4 kid item dimensional examination. 4.4.4.1 End item dimensional examination, frame. The end items shall be examined for conformance to the dimensions specified on the drawings. only those dimension
40、s that can be evaluated without damaging or disassembling the end items shall be examined. Any dimension not within the specified tolerance shall be classified as a defect. The lot size shall be expressed in units of frames. The sample unit shall be one frame. level shall be S-1 and the AQL, express
41、ed in terms of defects per hidred units, shall be 4.0. The inspection 4.4.4.2 End item dhnsional examination, frame bag. The end items shall be examined for conformance to the dimensions specified on the drawings. Only those dimensions that can be evaluated without damaging or disassembling the end
42、items shall be examined. Any dimension not within the specified tolerance shall be classified as a defect. The lot size shall be expressed in units of frame bags. inspection level shall be II and the AQL, expressed in tem of defects per hundred units, shall be 4.0. The sample unit shall be one frame
43、 bag. The 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-44425 (a) 4.4.5 Erad itemtestinq. Frames shall be tested as specified in 4.5.1 for canpianqe with 3.4. frames. be S-3. The lot size shall be expressed in units of tent The sample unit
44、 shall be one tent frame. The lot shall be rejected if there is a test failure. The inspection level shall 4,4.6 Packauinu examination. The fully packaged end itens shall be examined for the defects listed below. units of shipping containers. container fully packaged. expressed in tenw of defects pe
45、r hundred units, shall be 2.5. The lot size shall be expressed in The sample unit shall be one shipping The inspection level shall be S-2 and the AQL, Examine Defect Marking (exterior unitted; incorrect; illegible; of improper size, and interior) location, sequence, or method of application Material
46、s Any canponent missing, damaged, or not as specified Wrkmnship Inadequate application of components, such as: Bulged or distorted container incmplete sealing or closure of flap, improper taping, loose strapping, or inadequate stapling Content NLmiber per container is more or less than required 4.4.
47、7 Palletization examination. The fully packaged and palletized end The sample unit simil be one itens shall be examined for the defects listed below. expressed in units of palietized unit loads. palletized unit load, fully packaged. the AQL, expressed in terms of defects per hundred units, shall be
48、6.5. The lot size shall be The inspection level shall be S-1 and . Examine Defect Finished dimensions Ungth, width, or height exceeds specified maximum requirement Palletization Pallet pattern not as specified Lwd not bonded as specified Weight Exceeds maximum load limits Marking unitted; incorrect;
49、 illegible; of improper size, location, sequence, or method of application 4.5 Method of inspection. 4,5.1 Assenbly/disassemblv test. The caplete frame assmbly shall be assmbled/disassembled tested as follows: 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-44425 83 = 9999906 O486372 5 mi MIL-F-44425 (GL) a. The frame shall b
