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[INCH-POUND]
A-A-2925A
October 22, 1997
SUPERSEDING
A-A-2925
December 15, 1995
COMMERCIAL ITEM DESCRIPTION
KEY, SPLINE SOCKET HEAD SCREW AND KEY SETS SOCKET HEAD
The General Services Administration has authorized the use of this Commercial Item Description for procurement of the Type II key specified in Federal Specification GGG-K-275D for all federal agencies.
1. SCOPE
This Commercial Item Description covers “L” shaped spline socket head screw keys and sets.
2. CLASSIFICATION
Type I - 6 Spline
Type II - 4 Spline
3. SALIENT CHARACTERISTICS
3.1 Material. The key shall be made of high grade alloy steel hardened and tempered to comply with the physical and mechanical requirements.
3.2 Dimensions. The key shall conform to the dimension specified for “L” shaped spline socket head screw keys in Table 9 of ASME/ANSI B18.3. Measurements across flats and corners shall be taken 1/32 inch from the end on sizes 0.033 inch through 0.111 inch and 1/16 inch from the end on sizes 0.133 inch or larger. For keys with chamfered ends, the measurements shall be made from the end of the chamfer rather than from the end of the key.
3.3 Coating. The key shall be coated with black oxide or phosphate. The coating shall be adherent, smooth, continuous, and free from uncoated areas.
3.4 Sets. The components of sets shall conform to the specified requirements for the individual items.
3.5 Carrying containers. Carrying containers for sets shall be constructed of fabric or plastic. The design shall be a wrap, roll, envelope or pouch. Each carrying container shall be marked in a legible manner with the manufacturer’s name and the National Stock Number (NSN)of the item.
3.5.1 Carrying container material.
3.5.1.1 Fabric. The fabric shall be cloth duck material of sufficient grade and thickness to properly protect and retain the keys. The fabric shall be treated to resist water, mildew, and fungus and shall be olive drab.
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Comments, recommendations, additions, deletions, clarifications, etc. and any data which may improve this document should be sent to: General Services Administration Federal Supply Service, Tools and Appliances Center (6FET). Building 6, 1500 E. Bannister Road, Kansas City, MO 64131. |
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