1、4 by letter, MIL-H-ZY235B 7797906 2749580 243 M MIL-H-24135B(SH) 3 September 1993 SUPERSEDING 18 June 1986 MIL-H-24135A(SH) MILITARY SPECIFICATION HOSE, SYNTHETIC RUBBER, WIRE REINFORCED FOR FLEXIBLE HOSE ASSEMBLIES GENERAL SPECIFICATION FOR This specification is approved for use within the Naval Se
2、a Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense. 1 SCOPE 1.1 Scope. This specification covers the requirements for hose and hose assemblies. 1.2 Classification. Hose shall be of the sizes and constructions specified in
3、the individual associated detail specifications (see 6.2). 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards. and handbooks. The following specifica- tions, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specifie
4、d, the issue 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). Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of us
5、e in improving this document should be addressed to: Commander, Naval Sea Systems Command, SEA 03442, 2531 Jefferson Davis Hwy, Arlington, VA 22242-5160 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or AMSC N/A FSC 4720
6、 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SPECIFICATIONS MILITARY MIL-F-24787 - MIL-H-775 - MIL-L-2104 - MIL-H-5606 - MIL-L-17331 - STANDARDS FEDERAL FED-STD-162
7、 - MILITARY MIL-STD-177 - Fittings, End, Reusable for Flexible Hose Assemblies, Hose, Hose Assemblies, Rubber, Plastic, Fabric, or General Specification for. Metal (Including Tubing), and Associated Hardware: Packaging of. Service. and Ordnance. Lubricating Oil, Internal Combustion Engine, Tactical
8、Hydraulic Fluid, Petroleum Base; Aircraft Missile, Lubricating oil and Gear, Moderate Service. Hose, Rubber, Visual Inspection Guide for. Rubber Products, Terms for Visible Defects of. (Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available
9、from the Standardization Documents Order Desk, BLDG 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.2 Non-Government Dublications. The following document(s) form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD adop
10、ted are 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 SOCIETY FOR TESTING AND MATERIALS (ASTM) D 380 - Standard Methods of T
11、esting Rubber Hose. (DoD adopted) D 413 - Standard Test Methods for Rubber Property-Adhesion to D 1141 - Standard Specification for Substitute Ocean Water. Flexible Substrate. (DoD adopted) (DoD adopted) (Application for copies should be addressed to the American Society for Testing and Materials, 1
12、916 Race Street, Philadelphia, PA 19103.) (Non-Government standards and other publications are normally available from the organizations which prepare or which distribute the documents. documents also may be available in or through libraries or other informational services.) These 2 Provided by IHSN
13、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-24L35B 9999906 1949582 TLb 2.3 Order of Drecedence. In the event of a conflict between the text of this document and the references cited herein (except for associated detail specifications, specifications, speci
14、fication sheets or MS standards), the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Detail specifications. The individual item requirements shall be as specified
15、 herein and in the applicable associated detail specifications. event of any conflict between the provisions of this specification and the associated detail specifications, the latter shall govern. In the 3.2 Qualification. The hose furnished under this specification shall be products which are auth
16、orized by the qualifying activity for listing on the applicable qualified products list at the time of award of contract (see 4.3 and 6.3). 3.3 Material. Materials shall conform to the following requirements. 3.3.1 Hose. Hose shall consist of a synthetic rubber tube, wire reinforce- ment, and a synt
17、hetic rubber cover. 3.3.1.1 Rubber. The rubber compounds shall be as specified on the individual associated detail specifications. 3.3.1.2 Reinforcement. Wire used for the wire-braid or spiral-wrap reinforcement shall be high-strength carbon steel. 3.3.1.3 Frictioned fabric layer. The frictioned fab
18、ric layer, if used, between the tube and reinforcement shall be a cotton or synthetic fiber of good quality, or a combination of both. 3.3.2 Recovered materials. Unless otherwise specified herein, all equip- ment, material, and articles incorporated in the products covered by this specification shal
19、l be new. 3.4 General assembly requirements. 3.4.1 W. The hose shall consist of a seamless or wrapped synthetic rubber tube, wire-braid or wire-spiral-wrap reinforcement of high-strength carbon steel, and a synthetic rubber cover as specified on the applicable associated detail specification. this s
20、pecification and applicable associated detail specification and to retain qualified end fittings without slippage or leakage when tested as specified herein (see 6.2). The hose shall be constructed to meet the requirements of 3.4.2 Tube. The tube shall be fabricated from synthetic rubber as specifie
21、d on the applicable associated detail specification and shall have a smooth bore, be free from pitting, cuts, dirt, foreign material, mandrel lubricants or other defects that would affect the performance of the hose. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
22、nse from IHS-,-,-MIL-H-24135B H qb 1949583 952 MIL-H-24135B(SH) 3.4.3 Reinforcement. The reinforcement shall consist of high-strength carbon steel wire-braid OK wire spiral-wrap as specified on the applicable associated detail specification. A frictioned fabric layer may be applied over the reinforc
23、ement. 3.4.4 Cover. The cover shall be made of a synthetic rubber as specified in the applicable associated detail specification compounded to give maximum resistance to oxidation, weathering, abrasion and light aging, and to meet the requirements of this specification. 3.4.4.1 Cover color. The cove
24、r of hoses intended for petroleum-based oils shall be black, covers for hoses intended for phosphate ester lubricants shall be green and covers for hoses intended for multi-based lubricants shall be blue. 3.4.5 Concentricity. Concentricity, based upon full indicator reading between the inside bore o
25、f the hose and the outside surface of both the hose and the reinforcement, shall not exceed the following values: Size ID to OD ID to OD (hose) (reinforcement) TO -4 O. 030 0.021 Over -4 to -12 O. 040 O. 028 Over -12 to -32 O. 050 O. 038 Over -32 O. 062 O. 045 3.4.6 Dimensions and pressures. Hose di
26、mensions and pressures shall be in accordance with the applicable associated detail specification. 3.4.7 TemDerature range. Hoses for use with either petroleum based lubricants or phosphate ester based lubricants shall comply with specified requirements through a temperature range of minus 40F to pl
27、us 200F for all applications. Hoses for use with both petroleum and phosphate ester based lubricants (see specification sheets 12 and 13) shall have an upper temperature range of plus 300F. 3.4.8 Lengths. Unless otherwise specified (see 6.2), hoses less than size -20 shall be furnished in the follow
28、ing lengths: lengths 45 feet or longer and a maximum of 10 percent in lengths from 3 to 24 feet. Unless otherwise specified (see 6.2), hoses of size -20 and larger shall be furnished 85 percent in straight lengths of 12 feet or longer and the remainder in lengths not less than 6 feet. The hose lengt
29、hs shall be the actual length measured along the cover. a minimum of 65 percent in 3.4.9 Hose assemblies. When specified (see 6.2), hose assemblies containing hose to this specification and one of the specification sheets and fittings in accordance with MIL-F-24787 shall be supplied. 3.5 Phvsical re
30、auirements. 3.5.1 Proof Dressure. Hoses shall show no evidence of leakage, rupture, or deformation when subjected to the proof pressure test specified in 4.6.1 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-24135B 9999906 1949584 899 = MIL-H
31、-24135B(SH) 3.5.2 Stability (dimensional channel. When tested in accordance with 4.6.2, hoses shall not change in length more than plus 2 percent or minus 4 percent. O 3.5.3 Aning. The hose assembly shall show no evidence of aging, such as cracking, separation of plies, or a deformation in the form
32、of bulging or collapsing when subjected to the tests specified in 4.6.3. 3.5.4 Hydraulic fluid circulation. There shall be no evidence of leakage through the hose or hose fitting when subjected to the hydraulic fluid test specified in 4.6.4. 3.5.5 Hydraulic imvulse. Hrise shall show no evidence of f
33、ailure of leakage when subjected to the test specified in 4.6.5. 3.5.6 Burst vressure. Hoses shall show no indication of failure or leakage at less than the specified burst pressure when subjected to the burst test specified in 4.6.6. 3.5.7 Vacuum. There shall be no evidence of ply separation, colla
34、pse or other degradation of the hose when vacuum tested as specified in 4.6.7. 3.5.7.1 Internal suvvort devices. When required for test purposes (see 6.2), internal support devices shall be fitted to the hose assembly to prevent collapse under vacuum service. Support devices shall be flat wound spri
35、ng wire strip for hoses up to size -64 and a bonded rubber-ring support cylinder for hoses O sizes -64 and larger. 3.5.8 Cold temerature flexibilitv. Hose shall show no evidence of cracking or failure when subjected to the test specified in 4.6.8. Cold temperature flexing of hoses larger than size -
36、32 will be waived in lieu of a certified affidavit that rubber compounds meet the requirements of ASTM D 380. 3.5.9 Adhesion between plies. The adhesion between the tube, cover and reinforcement shall be tested in accordance with 4.6.9. 3.6 Identification marking. 3.6.1 Hose. Hose shall have a perma
37、nent and visible embossed or inlaid layline along its entire length. The numerals and lettering shall be not less than 3/16 inch high, and each set of markings shall be repeated at intervals not exceeding 20 inches. The layline shall contain, but not be limited to the following: 5 Provided by IHSNot
38、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-24L35B m b Lq585 725 m MIL-H-24135B(SH) M 24 13 5/X - 16 3Qn Xxxxx Mfrs CAGE Code I Quarter and year of manufacture 1 Hose dash size I Assoc. Detail Specification no. Specification number Mil spec prefix 3.7 Workma
39、nship. Hose shall be uniform in quality and material. Hose tube shall be smooth with no reinforcement visible and shall be free from dirt. Cover shall completely cover the reinforcement plies and shall be free of voids, blisters, cuts, nicks and other defects that could impair the function and servi
40、ceability of the hose in its intended use. 3.8 Age at time of shipment. Hose shall be manufactured not greater than 8 calendar quarters (2 years) prior to date of delivery. The calendar quarter of manufacture shall not be counted. 4. QUALITY ASSURANCE PROVISIONS 4.1 ResDonsibilitv for inspection. Un
41、less 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 faci
42、lities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. 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 and services co
43、nform to prescribed requirements. 4.1.1 ResDonsibilitv for comDliance. All items shall meet all requirements of sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality program. absence of any inspection requirements
44、 in the specification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing operations, is an acceptable practice to ascer
45、tain conformance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to accept defective material. The 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
46、-,-4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: (a) Qualification inspection (see 4.3). (b) Quality conformance inspection (see 4.4). O Examination/test Visual & dimensional Proof pressure Stability (dimensional Burst pressure change) 4.2
47、.1 Inspection conditions. Unless otherwise specified (see 6.2) all inspections shall be performed in accordance with the conditions specified herein. Environmental conditions shall be ambient laboratory conditions. Requirement Test 3.3, 3.4, 3.6, & 3.7 4.5.1 3.5.1 4.6.1 3.5.2 4.6.2 4.6.6 3.5.6 4.3 O
48、ualification inspection. Qualification inspection shall be conducted at a laboratory satisfactory to the Naval Sea Systems Command. inspection shall consist of the examination of 4.5 and the tests of 4.6.1 through 4.6.9. the applicable associated detail specification (see 3.1). Qualification Require
49、d hose assemblies and sequence of tests shall be as specified on 4.3.1 InsDection system. The manufacturer shall provide and maintain an inspection system acceptable to the Government for supplies and services covered by this specification. The inspection system shall be in accordance with the contract or purchase order (see 6.2). 4.3.2 Sampling for aualification. Sampling of hose or hose assemblies and the sequence of tests shall be in accordance wit
