1、c 4 MIL-B-4792E D 9999906 L727bb TT D /INCH POUNDI MIL-B-4792E(USAF) 11 JANUARY 1994 Superseding 1 June 1972 MIL-B-792D(USAF) MILITARY SPECIFICATION BUMPER, RUBBER, DUPLEX ROUND This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE i. i Scope.
2、This specification covers a duplex round rubber bumper. 2. APPLICABLE DOCUMENTS *2.1 Issues of Documents. The following documents of the issue in effect on date of invitation for bids or request for proposal form a part of the specification to the extent specified herein. SPEC I FI CAT I ON S O MILI
3、TARY MIL-P-116 Preservation, Methods of MIL-R-6130 Rubber, Cellular, Chemically Blown MIL-C- 10799 Cloth, Coated, Cotton, Vinyl Coated, Fire and Mildew Resistant Beneficial comments (recommendations, additions, deletions) and anv pertinent data which may be of use in improving this document should b
4、e addressed to The Resources and Logistics Services Division, SA-ALC/TILDD. Bldg 17 1. Post C- 12. 485 Quentin Roosevelt Rd . Kelly AFB, TX 78241 -6524, by using the Standardization Document Improvement Proposal (DD Icorm 1426) appeariny at the end of this document or by letter AMSC N/A FSC 5340 DIS
5、TRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c MIL-B-4792E 199990b 1972767 935 FEDERAL PPP-B-60 1 PPP-B-636 PPP-T-60 STANDARDS FEDERAL IED-SlD-SO5 MILITARY MIL-STD-129
6、MIL-STD- I30 MI L-STD-970 MIL-STD-2073- 1 MIL-STD- I I86 Boxes, Wood, Cleated-Plywood Box, Fiberboard Tape, Pressure-Sensitive Adhesive; Waterproof, for Packaging Colors used iii Govcriiiiieiit Procurement Marking for Shipment and Storage Identification Marking of IJS Military Property Standards and
7、 Specitcations Order of Precedence for the Selection of DOD Material Procedures for developing Blocking and Waterproofing; with Appropriate Test Methods *(Unless otherwise indicated, copies of the federal and military specifications and standards are available tiom the Standardization Documents Orde
8、r Desk, Building 4D, 700 Robins Avenue, Philadelphia, PA 19 I I 1-5094.) 2.2 Non-Government Publications. The following document forms a part of this document to the extend specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted are those listed in the issues
9、of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues ofthe documents cited the solicitation. OFFICIAL CLASSIFICATION COMMITTEE UNIFORM FREIGHT CLASSIFICATION RULES *(Application for copies should be addressed to the Ofic
10、ial Classification Committee, Room 202, Union Station. 5 16 West Jackson Blvd., Chicago, IL 60606.) 3. REQUIREMENTS 3.1 Selection of specifications and standards. Specifications and standards for necessary commodities and services not specified herein shall be selected in accordance with MIL-STD- 20
11、73- I. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Figure 1 - Bumper 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-4792E 9999906 1972769 708 c 3.2 Materials. All materials used in the
12、construction ofthe bumper shall be new and unused. e *3.3 Design and construction. The bumper shall be constructed of two cellular, sponge rubber cores completely covered on their curved surfaces with a woven cotton fabric coated as specified herein. The woven cotton fabric surrounding the rubber co
13、res niay be permanently bonded to the cores ofvulcanizing at the time of nianufacture or, if not. the fabric shall be sewn snugly around the rubber cores. The rubber cores shall be in the cured condition after tina1 processing of the bumper. The bumper shall conform to Figure 1 in its final conditio
14、n ready for shipnient. *3.3.1 Cores- The cores shall be of cellular rubber conforming to MIL-R- 1630, type I or type II, grade A, condition mediuni. 3.3.2 Fabric. The fabric material shall conform to MIL-(2-10799, type II, class 4, Table I. The coated color shall be green, color 24052. conforming to
15、 MIL-C-83286 or MIL-1-85285. “3.3.3 Stitchine. Ihe fabric cover shall be secured at the center by two rows of stitching with thread conforming to size. The stitching shall be as shown on Figure 1 and shall have 4 to 8 stitches per inch 3.3.4 Grommets. At intervals of6 j1/4 inch, the bumper shall hav
16、e 1/2 by 3/4 inch oblong brass grommets across the flanse and a 1/4 bv 7/ I6 inch opening after installation. The formed flange shall be on the seam side of the bumper. The flanle shall be securely formed without a washer. O 3.4 Length. Unless otherwise specified (see 6.2), the buniper shall be furn
17、ished in 100 +1/2 foot lengths. 3.5 Identification of product. Each 100 foot length of bumper shall be marked for identification in accordance with MIL-STD- 130. 3.6 Workinanship. The bumper shall be fabricated and finished in a worknianship manner. Particular attention shaH be given to freedoin fro
18、m blemishes and defects, vulcanizing and stitching, et cetera. 4. QUALITY ASSURANCE PROVISIONS “4. 1 Responsibilitv for inspection. Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of ai inspection requirements as specified herein. Except
19、as otherwise specified in the contract or order. the supplier niay use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. llie Government reserves the right to perform any of the inspections set forth in
20、 the specification where such inspections are deemed necessary to assure supplies and services conforni to prescribed requirements. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-8-4792E 9999906 1972770 42T 4.2 Classification of tests. The ins
21、pection and testing of the bumper shall be classified as acceptance tests. 4.3 Acceptance tests. Acceptance tests shall consist of the test described in 4.4.1 4.4 Test Methods. 4.4.1 Examination of product. The bumper shall be inspected to determine compliance with this specification with respect to
22、 material. stitching. vulcanizing, dimensions. and workmanship. *4.5 Insuection of ureservation. uackarrin-, packing - and marking for shipment and storage. Sample items or packs and the inspection of the preservation, packaging, packing and marking for shipment and storaye shall be in accordance wi
23、th the requirements of Section 5, or the documents specified therein. 5. PREPARATION FOR DELIVERY “5.1 Preservation and packaging. Preservation and packaging shall be Levei A or C, as specified (see 6.2). “5.1.1 Level A. *S. 1.1.1 Cleanin3 and drying. The bumper shall be cleaned in accordance with C
24、- 1 and dried with procedure D- 1 and D-4 of MIL-P- I i 6. *5.1.1.2 Unit packagk The bumper shall be packaged in accordance with Methods IC of MIL- P-116. The outer container shall be a fiberboard box conforming to PPP-B-636, style RSC. class overseas. The box shall be sealed with tape conforming to
25、 PPP-T-60, or equal. *5.1.2 Level C. Each bumper shall be packaged to afford protection against deterioration and physical damage during shipment from the supply source to the first receiving activity. The level may conform to the suppliers commercial practice when it meets the requirements of this
26、level. “5.2 Packing. Packing shall be level A, B, or C, as specified (see 6.2). “5.2.1 Level A. The bumpers. packaged as specified in 5.1, shall be packed for shipment in shipping containers conforming to PPP-B-60 1. overseas type. style A or B. Closure and strapping shall be in accordance with the
27、appendix to the container specification. *5.2.2. Level B. Level B packing shall be the same as Level A except the shipping container shall conform to PPP-B-60 1, domestic type, style A or B. e 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-4
28、792E 9999906 1972771 366 *5.2.3 Level C. The bumpers, packaged as specified in 5. i, shall be packed to insure carrier acceptance and safe delivery at destination. Containers shall conform to the Uniform Freight Classification Rules or regulations of the other carriers as applicable to the mode of t
29、ransportation. This may conform to the suppliers commercial practice when such meets the requirements of this level. *5.3 Phvsical Protection. Interior cushioning, anchoring, blocking or bracing shall be in accordance with MIL-STD- 1 186. “5.4 Markina. In addition to any special marking required by
30、the contract or order, unit packages and shipping containers shall be marked in accordance with the requirements of MIL- STD- 129. 6. NOTES 6.1 intended use. he bumper is intended to be installed on maintenance stands to protect aircraft, from damage incurred in bringing such maintenance stands into
31、 use. The bumper may be fastened through grommets to the article by means of rivets, screws, nails or other methods. 6.2 Ordering; data. Procurement documents should specie the following: a. Title, number, and date of this specification. b. If bumper is to be furnished in other than 100-foot lengths
32、 (see 3.4). c. Applicable level of preservation, packaging, and packing (see 5.1 and 5.2). *6.3 The margins of this specification are marked with an asterisk to indicate where changes (additions, modifications, corrections, deletions) from the previous issue were made. This was done as a convenience
33、 only and the Government assume no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. 6.4 Rec
34、laimed materials. The use of reclaimed materials shall be encouraged to the maximum extent possible. 6.5 Subiect term (key word) listing. Cores Fabric Stitching Gromment s 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Custodian: Air Force - 99 NIL-B-4792E 99999Ob L72772 2T2 MIL-B-4792E(USAF) Preparing Activity: Air Force - 52 (Prqiect No. 5340-F022) 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
