DLA A-A-50112 B-2000 PITON MOUNTAIN ANGLE《有角的登山锥》.pdf
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1、I INCH-POUND I A-A-50112B June 26,2000 SUPERSEDING February 21,1990 A-A-50112A COMMERCIAL ITEM DESCRIPTION PITON, MOUNTAIN, ANGLE The General Services Administration has authorized the use of this Commercial Item Description for all Federal agencies. 1. SCOPE. This commercial item description covers
2、 the requirements for pitons to be used to provide security for personnel or equipment in operations involving steep ascents by driving the pitons into cracks in rock. 2. CLASSIFICATION. The angle mountain pitons shall be of the following types: Type I Type II Type III - 4-1/4 inches long, 5/8 inch
3、thick - 5-5/8 inches long, 3/4 inch thick - 5-5/8 inches long, 1-1/4 inches thick 3. SALIENT CHARACTERISTICS. 3.1 Design and construction. The pitons shall be chromium-molybdenum alloy 4130 steel. The piton shall be capable of withstanding a force of 2700 pounds when tested as specified in paragraph
4、 3.5. The finish shall be black oxide. The manufacturers identification symbol shall be permanently marked on the pitons. The pitons shall be similar to figure I, which is for illustrative purposes only and is not intended to preclude procurement of pitons otherwise meeting all the requirements of t
5、his document. Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data which may improve this document should be sent to: Defense Personnel Support Center, Clothing and Textiles Directorate. Attn: DSCP-COET. 700 Robbins Ave. Philadehhia. PA 19111-5096. AMSC N/A F
6、SC 8465 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-501 12B 3.2 Type I. Type I pitons shall have a blade length of 4-1/4 21/8 inches, a thickness of 5/8 21/32 inch, and an approximate wedge of 3/4 inch. The eye hole shall be 11/16 - +U16 inch
7、 in diameter. The piton shall weigh 3 21/2 ounces. 3.3 Type IL Type II pitons shall have a blade length of 5-5/8 21/8 inches, a thickness of 3/4 21/16 inch, and an approximate wedge of 7/8 inch. The eye hole shall be 11/16 - +U16 inch in diameter. The piton shall weigh 4-1/2 _+U2 ounces. 3.4 Type II
8、I. Type III pitons shall have a blade length of 5-5/8 21/8 inches, a thickness of 1-1/4 21/16 inches, and an approximate wedge of 7/8 inch. The eye hole shall be 11/16 21/16 inch in diameter. The piton shall weigh 5 21/2 ounces. 3.5 -. All three types of angle pitons shall be pull tested in a vise.
9、The vise opening shall consist of standard flat knurled parallel jaw. Eighty percent of the blade length of the piton shall be held firmly in the clamp. A 2700 pound minimum force shall be applied toward the apex of the “V” of the piton by insertion of a steel hook or link diameter 1/2 _+ 1/32, bent
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