1、MIL-T-8li77L (3) 83 7777906 OLIO4775 T MIL-T-81791 (AS) AMENDMENT 3 28 November 1977 SUPERSEDING AMENDMENT 2 20 May 1976 MI L ITARY SPEC I FI CAT I ON TAPE, TEXTILE, NYLON, LANDBASED ARRESTING GEAR, 11 INCH This Amendment forms a part of Military Specification MIL-T-81791 (AS), dated 24 August 1970.
2、 PAGE 1 * 2.1, SPECIFICATIONS (Military): Delete: “MIL-B-13239 MIL-B-81374 -Barrier Material , Waterproofed , Flexible, Al 1 -Barrier Material , Greaseproof, Waterproof, Tempera ture Flexible, High Strength“ Add : “MIL-B-131 -Barrier Material, Watervaporproof, Flexible, Heat-Seal ab1 e“ 2.1 , STANDA
3、RDS (Mi 1 i tary ) : Add : “MIL-STD-1480 -Col or Codes for Webbi ng , Texti 1 e ; Manufac- turers Identification“ PAGE 2 2.2, delete the following: 90 Color Codes Manufacturers Identification, Nylon Webbing activity or as directed by the contracting officer.)“ “U.S. Air Force Specification Bulletin
4、No. (Application for copies should be addressed to the procuring PAGE 5 3.5, line 2: specification where applicable. Delete “NAEL(S1)“ and substitute “NAEC“ and throughout the FSC 3315 f-li%J e-* THIS uppzyr .2 $JpJs -I- 5 PAGES Provided by IHSNot for ResaleNo reproduction or networking permitted wi
5、thout license from IHS-,-,-MIL-T-81791 (AS) AMENDMENT 3 3.6.1, delete in its entirety and substitute the following: “3.6.1 Manufacturer Is identification. Each manufacturer shall incorporate, as part of the binder warp at the center of the tape, two ends dyed to matchthe shade assigned to the manufa
6、cturer in ac- cordance with MIL-STD-1480. A producer not listed in MIL-STD-1480 shall apply to the Commander, US Army Natick Research and Development Command, Natick, Massachusetts 01760, for assignment of color coding. The color- fastness of this yarn shall be rated as “Fair“ or “Good“ when tested
7、as specified in 4.7.“ 4.1, delete and substitute: “4.1 Responsibility for inspection. Unless otherwise speci- fied in the contract, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract, the contractor may
8、use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies a
9、nd services conform to prescribed requirements. I The Government PAGE 6 4.6.4.1, delete (a) and (b) and substitute: “(a) Yard-by-yard. A one yard unit of each production tape length shall be inspected as specified in 4.7.4.1 and 4.7.4.1.1 at intervals of approximately 40 feet. (b) Overall. Each prod
10、uction tape length shall be ex- amined for the defects specified in 4.7.4.2.“ PAGE 8 TABLE I I : tests insert “4.7.3.“ Under “OTHER“ col umn and , opposite “Melting point“ and “Denier“ PAGE 9 AT the top of page after footnote !3/ notation insert “(See 4.7.3)“. Page 2 of 5 Provided by IHSNot for Resa
11、leNo reproduction or networking permitted without license from IHS-,-,-MIL-T-81971 (AS) AMENDMENT 3 4.7.2.2, delete the entire paragraph and insert the following: “4.7.2.2 Tape ultimate strength tests. A test specimen, 10 feet long, shall be obtained as described in 4.7.2.3. The specimen shall be lo
12、ad tested.“ 4.7.2.3, delete the entire paragraph and insert the following: “4.7.2.3 Method of sampling for breaking strength tests. The first section of tape leaving a loom run shall have a 10 foot specimen removed from the lead end, After this, a 10 foot specimen shall be removed immediately fol lo
13、wing every other, or al ternate, production tape. loom, with the 10 foot specimens marked identically With the rolls of tape to which they apply. loom run and every 10 foot specimen thereafter. are tested as outlined in 4.7.2.2. The test may result in one of the following four possibilities (see Fig
14、ure 2):“ 4.7.2.3.3, lines 4 and 6: specimen. I The rolls of tape must be marked consecutively as they leave the Test the first 10 foot specimen leaving the The 10 foot specimens Delete “30-foot specimen“ and insert “10-foot PAGE 10 Figure 2: “10-foot specimen. I At the top of page delete both “30 fo
15、ot specimen“ and insert PAGE 11 4.7.2.3.4, lines 4, 6, and 9: Delete “30-foot specimen“ and insert “10- foot specimen. I 4.7.3, delete the entire paragraph and insert: count. manufacturer and will be accepted as proof that requirements for type of nylon, melting point, denier, filament count, and br
16、ight, high te- nacity, light and heat resistant nylon yarn are met. The certifica shall contain verifiable actual test data. If he approximate melt point of the specimens is not known before test ng, it shall be de- termined by a trial run.“ * “4.7.3 Type of nylon, melting point, denier, and filamen
17、t A certificate of compliance shall be submitted from the yarn Page 3 of 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-81791 AMENDMENT 3 TABLE III, MIL-T-81791 (3) 83 3797706 0404978 5 AS ) ine 8: Delete “of“ and insert “or“. PAGE 13 TABLE
18、III, under “Defects“ column delete the defects “Mispick, Double pick“ along with the entire notation and insert the following: DEFECTS DESCRI PT ION CRITICAL MAJOR MINOR Double pick Two or more across the full width X Mi spi ck Single across the full width X PAGE 14 4.7.4.2, delete and substitute: “
19、4.7.4.2 Overall examination. Each production tape length shall be examined for the defects listed below. One or more defects shall be cause for rejection of the tape loom run. Defects Objectionable odor Uncleanness Finish not equal to approved sample (when available) (see 6.3) Any rise of 3/8 inch o
20、r more in the tape when 50 feet are laid out flat on a smooth, level surface with no vertical pressure applied to the specimen. The first, middle and last 50 ft. sections shall be examined. Any curvature of 2 inches or more from a straight edge when 50 feet of tape are laid out flat on a smooth, lev
21、el surface with no waves present. The first, middle and last 50 ft. sections shall be examined. * 5.1.2, lines 2 and 3: Delete “MIL-B-81374 or MIL-B-13239, Type B-2, Class 1, Grade A“ and substitute “MIL-B-131, Class 1“. Page 4 of 5 Provided by IHSNot for ResaleNo reproduction or networking permitte
22、d without license from IHS-,-,-MIL-T-81791 (AS) AMENDMENT 3 NOTE: indicate where changes from the previous amendment were made. done as a convenience only and the Government assumes no liability Nhatsoever for any inaccuracies in these notations. tractors are cautioned to evaluate the requirements o
23、f this document based on the entire content irrespective of the marginal notations and relationship to the last previous amendment. The margins of this amendment are marked with an asterisk to This was Bidders and con- Preparing activity (Project No. 8315-N268) Navy - AS *U.S. GOVERNMENT PRINTING OFFICE: 1977 - 730-122/126 Page 5 of 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
