DLA A-A-59848-2009 PULLEY MOUNTAINEERING.pdf
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1、 A-A-59848 November 20, 2009 COMMERCIAL ITEM DESCRIPTION PULLEY, MOUNTAINEERING This commercial item description is approved for use by the Defense Supply Center, Philadelphia and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE. This commercial item descri
2、ption covers the requirements for mountaineering pulleys which are used to ease the act of hauling heavy items on rope systems. 2. CLASSIFICATION. The pulleys will be furnished in the following types and sizes: 2.1 Types. Type I Prusik Minding Type II Self Jamming Type III Standard 2.2 Sizing. The p
3、ulleys will conform to the sizes and characteristics as specified in Table I while meeting the standards in this description. TABLE I. Physical characteristics Comments, suggestions, or questions on this document should be addressed to: Defense Supply Center Philadelphia, Clothing and Textiles Direc
4、torate, Attn: DSCP Standardization Team, 700 Robbins Avenue, Philadelphia, PA 19111-5096. Since contact information can change, you may want to verify the currency of this address information using Acquisition Streamlining and Standardization Information System (ASSIST) online database at http:/assi
5、st.daps.dla.mil/ . AMSC N/A FSC 8465 Type Minimum Breaking strength, kN Weight, grams I 17 80 II 20 165 III 22 226 METRIC Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59848 2 2.2.1 Type I. The pulley will accommodate ropes between 8 millimeter
6、s and 11 millimeters while minding 6 millimeters to 9 millimeters prusik cord. The carabiner hole will be sized to fit two of each type of carabiners in accordance with A-A-59836. 2.2.2 Type II. The pulley will accommodate ropes between 8 millimeters and 11 millimeters. The carabiner hole will be si
7、zed to fit each type of carabiner in accordance with A-A-59836. 2.2.3 Type III. The pulley wheel will have roller bearings and be large enough, to accommodate a 1/2 inch diameter rope and meet the salient characteristics of 3.1.2. The center bolt will have a 3/8 inch diameter shaft fabricated from s
8、teel. The carabiner hole will be large enough to accommodate each type of carabiner in accordance with A-A-59836. 3. SALIENT CHARACTERISTICS. The pulley side parts and sheave shall be made of 6061-T6 aluminum. The self-jamming mechanism (Type II only) shall be made of chrome plated steel. The pulley
9、 design shall provide ease of use with typical combat gloves while meeting the standards in this description. 3.1 Type I. The prusik minding pulley shall be designed to haul items while preventing a tied prusik, being used for backup, from slipping through and becoming wedged in the pulley. The pull
10、ey shall be able to be opened via the side plates to allow for ease of access to the rope channel without having to thread the rope through the pulley. The sheave shall be mounted on sealed bearings. 3.1.1 Type II. The self jamming pulley shall be designed to be used as an automatically jamming pull
11、ey that will lock the load off when tension is applied. The pulley shall have an anti-return cam (stop) which will cause the pulley wheel to lock when the pulley goes backwards. The anti-return cam shall have a catch to set the cam in the on or off position so the device can be used as a simple pull
12、ey. The anti-return cam shall be self cleaning and function with dry, wet, frozen or muddy ropes. The pulley shall include markings on the body to identify direction of operations and rope sizes. 3.1.2 Type III. The standard pulley shall have spilt halves that enable the user to put the rope in the
13、pulley without having to thread the rope through the pulley. The pulley sides and wheel shall be fabricated from aluminum. The shaft nut shall have a self-locking nylon insert. Minimum breaking strength shall be 5000 pounds. Maximum weight shall be 0.5 pounds. Finish shall be black anodized. The man
14、ufacturers identification symbol shall be stamped on each pulley assembly. 3.2 Color. The pulley exterior (all types) shall be provided in a low reflectance finish and provide low contrast with typical use terrain. 3.3 Tests. 3.3.1 Type I and Type III. The pulley shall meet the International Mountai
15、neering and Climbing Federation (Union Internationale des Associations dAlpinisme -UIAA) Standard 127. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59848 3 3.3.2 Type II. The pulley shall meet UIAA Standard 127 and UIAA Standard 126. 3.4 Workm
16、anship. The finished pulley, mountaineering shall conform to the quality of product established by this document. The occurrence of defects shall not exceed the contractors own quality assurance standards and the quality assurance standards defined in the technical data in the solicitation and/or co
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