1、A-A- 50432 20 April 1989 COMMERCIAL ITEM DESCRIPTION HINGE, BUTT (SHIPBOARD/MARINE) The General Services Administration has authorized the use of this commercial item description in preference to Military Spcification MIL-H-1237. This commercial item description covers commercial and marine quality
2、butt hinges suitable for shipboard use. Salient characteristics. Desim - Unless otherwise specified, the requirements shall be in accordance with ANSI A156.7. z.Y!s I - Swaged, fast pin, flush or oval ends, with holes. II - Swaged, loose pin, button-tipped with holes. III - Swaged, fast pin, flush o
3、r oval ends, without holes. IV - Non-swaged, fast pin, flush or oval ends, with holes. V - Swaged (heavy), fast pin, flush or oval ends with holes. VI - Non-swaged (heavy), fast pin, flush or oval ends with holes. VI1 - Non-swaged, fast pin, flush or oval ends, without holes. Class I - Wrought brass
4、 hinge with corrosion resistant steel (CRES) pin II - Wrought aluminum hinge Group A - With hard brass pin Group B - With CRES pin Group A - With hard brass pin Group B - With CRES pin III - Wrought steel hinge Style A - Without virgin nylon shoulder bushings (for type II, class I, B - With virgin n
5、ylon shoulder bushings (for type II, class I, 3-1/2 by 3-inch hinges only.) 3-1/2 by 3-inch hinges only,) Material. Hinges shall be constructed of materials one-nine (see section 4) of-ANSI A156.18 unless otherwise specified. Provided by IHSNot for ResaleNo reproduction or networking permitted witho
6、ut license from IHS-,-,-A-A- 50432 Finishes, The surface of the hinge shall be finished as specified in ANSI A156.18, (a) Class 1: After manufacture, brass hinges, tips and screws shall be satin nickel finished 0.0002-inch thick. Type II, class 1, styles A and B, 3-1/2 by 3-inch hinges and screws sh
7、all have a dull chrome US26D finish. finished and given a commercial anodized treatment that shall provide a coating of aluminum oxide not less than 0.0004 inch thick to obtain the necessary hardness and positive protection against corrosion.- coated with a minimum thickness of 0,0005 inch of zinc a
8、nd then treated with a phosphate solution. (b) Class 2: After manufacture, aluminum hinges and tips shall be satin (c) Class 3: After manufacture, steel hinges and screws shall be zinc Shoulder bushing. Shoulder bushings shall be made of virgin nylon or CRES. NOTE: 3-1/2 by 3-inch hinge shall be fit
9、ted with virgin nylon or CRES shoulder, bushings in each knuckle when ordered for metal joiner doors. Type I, II, III, IV, and VI1 aluminum hinges 3 inches and up shall be fitted with a CRES bushing extending the entire length of each knuckle. Pins, Pins shall be made of materials one-nine (see sect
10、ion 4) of ANSI Al56.18 and conform to design types I through VII. Button tios. On steel hinges button tips shall be made of brass. Button tips shall be of the cylindrical type having a square shoulder approximately 1/8 inch high flush with the barrel of the butt hinge. Fasteners. All mounting hardwa
11、re required for attachment shall be included with the hinges. The hardware shall be of suitable size and shall be compatible with the material and finish of the hinge. Workmanshio. The hinge shall be free from imperfections such as blemishes, burrs and unsquare edges which may impair durability or s
12、erviceability. Also, the pins shall fit neatly and the hinges operate freely. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-501.132 53 m 997997L1 0002103 3 W A-A-50432 a a a SH 13232039 3.500 L NOTE: EACH KNUCKLE HAS A SHOULDER BUSHING IN EACH
13、END. 4!+“ .O62 r- . I23 3.000 FIGURE 1. Layout of type II. class I. style B. 3-1/2 bv 3-inch hinge for metal ioiner doors. Qualitv assurance provisions. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (exa
14、minations and tests) as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Govern- ment reser
15、ves the right to perform any of the inspections set forth in this specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements. Samplina. m. All hinges of the same type, class, style, size, and finish presented for acceptance at one tim
16、e shall be considered a lot for purposes of inspection. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-50432 Sampling for quality conformance examination and testinq. A random sample of hinges shall be selected from each lot in accordance with
17、 MIL-STD-105. Visual and dimensional inspection. Samples shall be selected in accordance with MIL-STD-105, special inspection level S-3. The sample hinges shall be visually and dimensionally examined to verify compliance with this specification. Testing for permanent set and finish, Samples shall be
18、 selected in accordance with MIL-STD-105, special inspection level S-2. The sample hinges shall be tested in accordance with ANSI A156.1 and A156.18 as applicable. Certification of performance and finish test.requirements. When specified in the contract or purchase order, a certificate of conformanc
19、e may be furnished in lieu of actual testing on a lot-by-lot basis provided that: (1) Objective evidence dated not more than 2 years prior to the date of the start of the contract as described in the solicitation, or date of the purchase order as applicable, shall be available. been performed by an
20、independent test facility acceptable to the Government. (3) That the product being offered is the same type, material and finish and has been manufactured using the same material, processes and manufacturing techniques as the product tested. (2) Tests specified in the industry standards referenced h
21、erein have Examination for preparation for deliverv. A random sample of unit, inter- mediate and shipping containers (as applicable) shall be selected from each lot and examined for conformance to the preservation, packaging, packing, labeling and marking required in the contract or order. Samples s
22、hall be selected in accordance with MIL-STD-105, inspection level II. Preservation, packaging. - packinp, - labeling, and markinp (civil agencies). The preservation, packaging, packing, labeling, and marking shall be as specified in the contract or order, Packaging (DoD). The packaging shall be in a
23、ccordance with ASTM D 3951. Renulatorv requirements. In accordance with section 23.403 of the Federal Acquisition Regulations, the Governments policy is to acquire items composed of the highest percentage of recovered materials practicable, consistent with main- taining a satisfactory level of compe
24、tition without adversely affecting perfor- mance requirements or exposing suppliers employees to undue hazards from the recovered materials. The term “recovered materials“ means materials which have been collected or recovered from solid waste and reprocessed to become a source of raw materials as o
25、pposed to virgin raw materials, None of the above shall be interpreted to mean that the use of used or rebuilt products are allowed under this commercial item description unless otherwise specified, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Not
26、es, Ordering data. (a) Title, number and date of this commercial item description. (b) Type, class and style of hinge. (c) Size of hinge. (d) The issues of ANSI A156.1, A156.18 and A156.7 in effect on the date of the solicitation shall be used to determine compliance with these requirements. America
27、n National Standards Institute, 1430 Broadway, New York, (e) Applications for ANSI Documents should be addressed to the NY 10018-3308. Supersession data. The relationship of the types of butt hinges covered in this commercial item description, MIL-H-1237C, MIL-H-001237B and MIL-H-1237A to the types
28、covered in MIL-H-1237 is as follows: This commercial item description and MIL-H-l237A, MIL-H-O01237B, MIL-H-1237C Type 1 Type II Type III Type IV Type VI Type VI1 Type v MILITARY INTERESTS: Custodians: Army - AR Navy - SH Air Force - 82 Review activities: Air Force - 85 DIA - IS User activities Navy - AS, MC, OS MIL-H-1237 PREPARING ACTIVITY Navy - SH Agent DIA - IS (Project 5340-1633) 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
