1、1 INCH-POUND I MIL-F-44422 27 December 1990 SUPERSEDING (See 6.4) MILITARY SPECIFICATION FIBER ROPE ASSEMBLY, INSERTION/EXTRACTION This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers a fiber rope assembly
2、(see 6.1). 1.2 Classification. The rope assembly shall be of the following types as specified (see 6.2). Type I - 60 feet long (+5%, -0%) Type II - 90 feet long (+5%, -OX) Type III - 120 feet long (+5%, -0%) 2. APPLICABLE DOCUMENTS 2.1 Government documents, 2.1.1 Specifications, standards, and handb
3、ooks. The following specifica- tions, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and suppleme
4、nt thereto, cited in the solicitation (see 6.2). I Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be used in improving this document should be sent to: U.S. Army Natick Research, Development, and Engineering Center, Natick, MA 01760- 5019 by using the St
5、andardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 4020 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
6、 IHS-,-,-MIL-F-44422 SPECIFICATIONS FEDERAL UIJ-T-8 1 - Tag, Shipping and Stock PPP-B-601 - Boxes, Wood, Cleated-Plywood STANDARDS FEDERAL FED-STD-191 - Textile Test Methods FED-STD-595 - Colors Used in Government Procurement MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by MI
7、L-STD-129 - Marking for Shipment and Storage MIL-STD-147 - Palletized Unit Loads MIL-STD-731 - Quality of Wood Members For Containers and Pallets Attributes (Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available from the Standardization Doc
8、uments Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.1.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified
9、, the issues are those cited in the solicitation. DRAWINGS u.s, ARMYNATICK RESEARCH, DEVELOPMENT, AND ENGINEERING CENTER 11-1-3957 - Fiber Rope Assembly, Insertion/Extraction (Copies of drawings are available from the U.S. Army Research, Development, and Engineering Center, ATTN: STRNC-UX, Natick, M
10、A 01760-5017.) 2.2 Non-Government publications. The following documents form 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 the DODISS cited in the solicitation, Unless otherwise s
11、pecified, the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). I-. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-HIL-F-44422 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ACTM) D 276
12、- Identification of Fibers in Textiles D 3951 - Standard Practice for Commercial Packaging Applications for copies should be addressed to the Americari Society for Testing and.Materials, 1916 Race Street, Philadelphia, PA 19103-1187.) (Non-Government standards and publications are normally available
13、 from organi- zations that prepare or distribute the documents. These documents also may be available in or through libraries or other informational services.) 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 docu
14、ment takes prece- dence. 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 subjected to first article inspection (see 6.3) in accordance .with 4.3
15、. 3.2 Government and contractor purchases. The requirements specified in 3.7 and 3.8 apply only to rope purchased directly by the Government. requirements apply both to rope purchased by a contractor as a component for an end item and to rope purchased directly by the Government. All other 3.3 Mater
16、ial. 3.3.1 Main rope. The main rope shall be fabricated from virgin continuous filament, heat and light resistant polyethylene terephthalate type polyester with a staple wrap. The rope shall be dyed green to approximate any color in the range indicated by color chips 34052, 34079, 34086, 34092, 3409
17、6, 34097, 34098, 34102, 34108, and 34128 of FED-STD-595. Testing shall be as specified in 4.4.1.1. 3.3.2 White extraction loops rope. The extraction loops rope shall be fabricated from bright, virgin, continuous filament, heat and light resistant nylon of at least 6 denier size, having a minimum ten
18、acity of 8.5 grams per denier. The nylon shall be a long chain polymer made of hexamethylene diamine and adipic acid, or a long chain polymer of epsilon amino caproic acid. Mixture of nyion types shall be prohibited in any one rope. specified in 4.4.1.1. Testing shall be as 3.3.3 Safety line rope; T
19、he safety line rope shall be fabricated from continuous filament, U.V. stabilized nylon having a minimum tenacity of 6.5 grams per denier. Mixture of nylon types shall be prohibited in any one rope. The rope shall be dyed black to approximate any color in the range indicated by color chips 27040, 37
20、038, and 37056 of FED-STD-595. Testing shall be as specified in 4.4.1.1. 3 I. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-F-44422 40 W 9997906 04b6373 b -.* I J MIL-F-44422 3.4 Component construction, 3.4.1 Main rope. The rope shall be Const
21、ructed of eight strands arranged in four pairs, where one individual strand shall be laid adjacent to the secoild strand in each pair, and shall conform to the requirements specified herein and in table I, Individual strands shali be made of one size of singles yarn and shall have an equal number of
22、 yarns. The yarn shall be 40000 to 50000 denier and shall be “S“ and “Z“ twist, The rope shall be constructed without knots or splices in the strands of the rope. However, knots will be permitted in the singles yarn. In preparation of the constituent rope strands, the pattern “SZ“ shal.1 be employed
23、 in the twisting of the yarns and the individual strands of the two pairs while the components of the remaining pairs shall be twisted in the “ZS“ pattern. The finished rope shall be so constructed that in the inter- weaving procedure, pairs of strands of the former structure shall be twisted in the
24、 “2“ direction, while alternating pairs of the latter shall be twisted simultaneously in the IS“ direction, Heat setting of the rope or any portion of its components shall-not be permitted. I 3.4.2 White extraction loops rope. The rope shall be constructed of eight strands arranged in four pairs, wh
25、ere one individual strand shall be laid adjacent to the second strand in each pair and shall conform to the requirements specified herein and in table I. Individual strands shall be made of one size of balanced 3-ply yarns and shall have equal numbers of plied yarns. The singles yarn shall be 4000 t
26、o 10000 denier. The rope shall be constructed without knots or splices in the singles yarn, 3-ply yarns, strands, or rope. Knots in the single filaments are acceptable. In the preparation of the constituent rope strands, the pattern “SZS“ twist shall be employed in the twisting of the singles yarns,
27、 the 3-ply yarns and the individual strands of two pairs, while the components of the remaining pairs shall be twisted in the “ZSZ“ pattern, The finished rope shall be so constructed that in the interweaving procedure, pairs of strands of the former structure shall be twisted in the “Z“ direction, w
28、hile alternating pairs of the latter structure shall be twisted simultaneously in the “S“ direction, The finished rope shall be heat set. Dry heat setting is prohibited. 3.4.3 Safety line rope, The rope shall be constructed of eight strands arranged in four pairs, where one individual strand shall b
29、e laid adjacent to the second strand in each pair and shall conform to the requirements specified herein and in table I. Individual strands shall be made of one size of balanced 3-ply yarns and shall have equal numbers of plied yarns. The singles yarn shall be 4000 to 10000 denier. The rope shall be
30、 constructed without knots or splices in the singles yarn, 3-ply yarns, strands, or rope. Knots in the single filaments are acceptable. In the preparation of the Constituent rope strands, the pattern “SZS“ twist shall be employed in the twisting of the singles yarns, the 3-ply yarns and the individu
31、al strands of two pairs, while the components of the remaining pairs shall be twisted in the “ZSZ“ pattern. The finished rope shall beb-o constructed that in the interweaving procedure, pairs of strands of the former structure shall be twisted in the “2“ direction, while alternating pairs of the lat
32、ter structure shall be twisted simultaneously in the IS“ direc- tion. The finished rope shall be heat set. Dry heat setting is prohibited. 4 e Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TAB LE I. MIL-F-44422 Component physical requirements. Extr
33、action Safety line Characteristic Main rope loops rope rope Siameter in inches i/ - Circumference in inches at load “Pi - 2/ Load “P“ (pounds) 2/ Breaking strength minimum (pounds) Hardness minimum/maximum (pounds) Feet per pound at load “Pi - 2/ Elongation maximum (percent) Loss in breaking strengt
34、h after heat aging, not exceeding (percent) O Moisture content maximum (percent) Extractable matter maximum (percent) 1-3/4 5-1/2 - + 1/4 610 35,000 325/450 1.23 - + 5% 59% 10% 5% 4% 9/16 1-3/4 - + 1/8 65 4/12 10.79 - + 5% - 1 O% 5% 4% 9 j 1.6 1-3/4 - + 1/8 65 30/60 10.34 - + 5% - I O% 5% 4% - i/ No
35、t a specification requirement; included for information only. - 2/ The load “Pic (pounds) shall be equal to 200 times the square of the nominal diameter of the rope in inches (P = 200D2). 3.5 Construction of assembly. The fiber rope assembly shall be constructed in accordance with 3.5.1, 3.5.2 and 3
36、.5.3, and Drawing 11-1-3957. 3.5.1 Main rope. The main rope shall have an eye splice on one end with a minimum of 4 inches and a maximum of 6 inches inside length. shall be made using a minimum of three full tucks and two half tucks. The free end shall be seared and whipped. The eye splice 3.5.2 Whi
37、te extraction loops rope. The white nylon extraction loops rope shall be passed through the center of the main rope five picks up from the free end and eye spliced around the outer half of the main rope. eye splice, the white rope shall pass through the center of the main rope to form the At the end
38、 of the 0 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-49422 40 9 797470b OLibb375 T .i 4 li1 L - F- 4 4 4 2 2 bottom of the first loop, and then enter again through the center of the main rope three picks up from the bottom of the first l
39、oop to form the first loop. Each white loop shall consist of 10 inches (+ 1 inch) of exposed rope. After the white rope has been passed through the center of the main rope forming a loop. it shall be passed back through the center of the main rope one and one-half picks up, and then passed through t
40、he center of itself rIhere it last entered the main rope. The white rope will then be passed through the center of the main rope two and one-half picks up from the top of the last loop, then passed back through the center of the main rope two picks up from the last exit, then passed back through the
41、 center of itself, and passed back through the center of itself and passed back through the center of the main rope one pick up from where it had last passed through iteself, forming the bottom of the second loop. The same procedure shall be followed to make the second and third white loops. After m
42、aking the third loop, the white nylon rope shall be passed through the center of the main rope three and one-half picks up from the top of the third loop, and then eye spliced around the outer half of the main rope. Each eye splice in the white nylon rope shall consist of four full and two half tuck
43、s. 3.5.3 Safety line rope. The black nylon safety line rope shall pass through the center of the main rope one and one-half picks above, and on the same side as, the upper eye splice of the extraction loops rope. The black nylon safety line rope shall then pass through the two securing passes of the
44、 extraction loops rope, on the same side as the main rope, then through the center of the main rope, one pick above the lower eye splice of the extraction loops rope. After passing through the main rope, the safety.1ine rope will then be passed through the securing passes on the opposite side of the
45、 first two, and the rope will then be spliced to itself with a short splice between the top eye and the top securing pass. After being spliced together, the safety line rope shall extend out as far as the extraction loops, and shall not interfere with the extraction loops. 3.6 Physical requirements.
46、 3.6.1 Finished assembly. The finished fiber rope assembly, consisting of the mainrope, extraction loops rope, and safety line rope shall conform to the physical properties listed in table II when tested as specified in 4.4.6. TABLE II. End item physical requirements. Breaking strength, minimum (pou
47、nds) Extraction loops (each) 9,000 Safety line rope 9,000 3.7 Identification. Each rope assembly shall have a ticket (identification tag) attached for identification purposes. The ticket shall conform to the requirements for type B, class 1, size 4 or 5 of UU-T-81. The ticket shall be made of not le
48、ss than 15-point paper stock and have a minimum tearing resistance 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. O O O MIL-F-44422 in both directions (total) of 850 grams when tested as specified in VU-T-81. All ticket entries shall be legibly
49、printed, stamped, or typed with water insoluble ink. The ticket shall contain the following information: National stock number Nomenc la t.ur e Specification number Length and weight Contract number and date Contractors name Date of manufacture (month and year) 3.8 Workmanship. The end item shall conform to the quality of product estab- lished by this specification and the occurrence of defects shall not exceed the applicable acceptable quality levels. 4
