1、I INCH-POUND MIL-DTL-20 176G 7 November 1997 SUPERSEDING 19May 1989 MIL-H-20 176F DETAIL SPECIFICATION HOSE AND HOSE ASSEMBLY, RUBBER, SMOOTH BORE, LIGHT-WEIGHT SEWAGE DISCHARGE AND OILY WASTE DISCHARGE This specification is approved for use by all Departments and Agencies of he Department of Defens
2、e. 1. SCOPE 1.1 Scoue. This specification covers smooth bore, sewage discharge, and oily waste discharge rubber hose and hose assemblies. 1.2 Classification. 1.2.1 TvDes. classes. and sizes. Sewage hose and oily waste will be of the following types, classes, and sizes, as specified (see 6.2): Type I
3、 - Sewage hose. Size 1.5 - 1.5 inches (38.10 millimetre (mm) nominal inside diameter (id). Size 2.5 - 2.5 inches (63.50 mm) nominal id. Size 4.0 - 4.0 inches (101.60 mm) nominal id. Type II - Oily waste hose. Size 2.5 - 2.5 inches (63.50 mm) nominal id. Beneficial comments, recommendations, addition
4、s, deletions, clarifications, etc. and any data which may improve this document should be sent to: Commanding OfEcer (Code 15E2), Naval Construction Battalion Center, 1000 23rd Avenue, Port Hueneme, CA 93043-4301, by using he Standardization Document Improvement Proposal D Form 1426) appearing at th
5、e end of this document or by letter. AMSC NIA FSC 4720 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-20 176G Class 1 - Noncollapsible. Class 2 - Collapsible. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are spec
6、ified in sections 3 and 4 of this specification. This section does not include documents cited in other 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
7、 they must meet all specified requirements documents cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 SDecifications and standards. The following specifications and standards form a part of this document to the extent specified herein.
8、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 supplement thereto, cited in the solicitation (see 6.2). SPECIFICATION FEDERAL A-A-52506 - STANDARDS MILITARY MS2702 1 - MS27025 - M
9、S27028 - MS27029 - Clamps, Hose. Coupling Half, Quick Disconnect, Cam-Locking Type, Male, Hose Shank, Type II. Coupling Half, Quick Disconnect, Cam-Locking Type, Female, Hose Shank, Type VI. Coupling Half, Quick Disconnect, Cam-Locking Type, Cap, Dust, Type IX. Coupling Half, Quick Disconnect, Cam-L
10、ocking Type, Plug, Dust, Type X. (Unless otherwise indicated, copies of the above specification and standards are available from the Defense Automated Printing Services, Attn: DoDSSP, Building 4D, 700 Robbins Avenue, Philadelphia, PA 191 11-5094.) 2.3 Non-Government publications. The following docum
11、ents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DoD 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- flIL-DTL-20L7bG 9999905 2853726 T5L MIL-DTL-20 176G adopted are
12、 those listed in the issue of the DoDISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DoDISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN NATIONAL STANDARDS INSTITUTE, INC. (ANSI) ANSI-2 1.4 - Sampling Procedures an
13、d Tables for Inspection by Attributes. (Application for copies should be addressed to the American National Standards Institute, Inc., 11 West 42nd Street, New York, NY 10036.) ASTM ASTM B 26A326 - ASTM B 27 1 - ASTM D 380 - ASTM D 412 - ASTM D 413 - ASTM D 471 - ASTM D 518 - ASTM D 573 - ASTMD 1149
14、 - ASTME 1282 - Aluminum-Alloy Sand Castings. Copper-Base Alloy CentrifUgal Castings. Testing Rubber Hose. Tension Testing of Vulcanized Rubber. Adhesion of Vulcanized Rubber (Friction Test). Change in Properties of Elastomeric Vulcanizates Resulting from Immersion in Liquids. Surface Cracking of St
15、retched Rubber Compounds. Accelerated Aging of Vulcanized Rubber by the Oven Method. Accelerated Ozone Cracking of Vulcanized Rubber. Standard Guide for SpeciEying the Chemical Compositions and Selecting Sampling Practices and Quantitative Analysis Methods for Metal and Alloys. (Application for copi
16、es should be addressed to the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) 2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document shall take precedence.
17、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 in accordance with 4.2.1 and 6.3. 3.2 Materials. Materials
18、 used shall be free from defects which would adversely affect the performance or maintainability of individual components or of the overall assembly. Materials not specified herein shall be of the same quality used for the intended purpose in commercial practice. Unless otherwise specified herein, a
19、ll equipment, material, and articles incorporated in the work 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-20 176G Physical properties Tensile strength, pounds per square inch Ultimate elongation percent minimum. Adhesion, pounds (lb) (k
20、ilogram (kg) per inch (miilimetre (mm) of width, minimum. Tensile strength, psi (a) minimum. Initial properties. (psi) (kilopascal pa). Properties after immersion in test fluid. Ultimate elongation, percent minimum. Volume increase, percent maximum. Adhesion, lb (kg) per inch (mm) of width, minimum.
21、 Tensile strength, psi Pa) minimum. Properties after accelerated aging. covered by this specification are to be new and fabricated using materials produced from recovered materials to the maximum extent possible without jeopardizing the intended use. The term “recovered materials” means materials wh
22、ich have been collected or recovered from solid waste and reprocessed to become a source of raw materials, as opposed to virgin raw materiais, Unless otherwise specified, none of the above shall be interpreted to mean that the use of used or rebuilt products is allowed under this specification. Tube
23、 Reinforcement and cover plies = 1400 - (9 653 kPa) 300 1 12 12 (83 kg) (83 kg) 1000 1 (6 895 Wa) 150 100 1 O0 9 9 (62 kg) (62 kg) 1200 - (8 274 Wa) 3.3 Construction. 3.3.1 PrinciDal parts. Hose shall consist of the following: a. An inner rubber tube (see 3.3.2). b. An outer cover (see 3.3.2). c. Pl
24、y or plies of reinforcement material (see 3.3.3.1). d. A helix or helixes of round steel wire (class 1 only) (see 3.3.3.2). e. End fittings (see 3.3.4). 3.3.2 Rubber components. Rubber used in the inner tube, outer cover, and friction material shall meet the physical properties of table I and 3.6.4.
25、 TABLE I. Physical properties of types I and II hose material. Ultimate elongation, percent minimum. 200 - I l Ozone resistance, hose cover. No cmcking Test requirements paragraph 4.5.10.1 4.5.10.1 4.5.10.5 4.5.10.2 4.5.10.2 4.5.10.4 4.5.10.6 4.5.10.3 4.5.10.3 4.5.11 4 Provided by IHSNot for ResaleN
26、o reproduction or networking permitted without license from IHS-,-,-MIL-DTL-2017hd M 7977306 2053928 824 MIL-DTL-20 176G Size id Tolerance, inch (mm), id Tube thickness, inch (mm), min 3.3.3 Reinforcement. (38 mm) (64 mm) (102 mm) f 0.047 k 0.062 f 0.062 ( Drocedures. 6.5.1 Sampling for examination.
27、 Recommended inspection level is II and AQL is 2.5 for major defects and 4.0 for minor defects (see 4.3.1). 6.5.2 Sampling for tests. Recommended inspection level is 11 and AQL is 2.5 (see 4.3.2). 6.6 National Stock Numbers RJSNs). The following is a list of NSNs assigned which correspond to this fe
28、deral specification. The list may not be indicative of all possible NSNs associated with the federal specification. 4720-0 1-146-5889 4720-0 1-1 53- 1423 4720-0 1- 153-83 5 1 4740-01-235-5997 6.7 Subiect term (key word) listing. Adhesion Burst pressure Couplings Crush resistance Hydrostatic proof pr
29、essure Reinforcement Tensile pull 6.8 Supersession data. This specification replaces Military Specification MIL-H-20176F dated 19May 1989. 14 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Custodians : hy-ME Navy - YD1 Air Force - 99 Review Activities: Navy - SH Air Force - 82 DLA - CC MIL-DTL-2017bG H 79177Oci i9053738 773 MIL-DTL-20 176G Preparing Activity: Navy - YD1 (Project 4720-0 104) 15 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
