5360-01-212-2257 SPRING,HELICAL,COMPRESSION Index 5340-01-212-2259 SNAP HOOK

National Stock Number:
5325-01-212-2258

Federal Supply Class:
5325

National Item Identification Number:
012122258

Description:
RING,RETAINING

Detail:
A resilient metal item, circular or nearly circular, which is designed to be inserted into an internal or external groove and retained by its own spring action, or it may have external prongs or projections designed to be inserted into a hole and retained by spring action of the prongs which grip by imbedding into the material. For items having internal prongs which perform the same function, see PUSH ON NUT. It is used to keep and/or lock a part(s) in position, as a ball bearing on a shaft or in a housing. See also CLIP, RETAINING and PIN, LOCK. Excludes RING, CONNECTING, ROUND.


Manufacturer Information:
7915454-0090536LOCKHEED MARTIN CORP
MS16628-501896906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
R273NAA0018NN643NNAA105047THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS


Techincal Specification:
CASEHARDENING INDICATORNOT CASEHARDENED
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
END PLAY TAKEUP0.017 INCHES MINIMUM AND 0.025 INCHES MAXIMUM
INSIDE DIAMETER0.164 INCHES MINIMUM AND 0.170 INCHES MAXIMUM
MAJOR THICKNESS0.013 INCHES MINIMUM AND 0.017 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE
MATERIAL HARDNESS RATING77.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 82.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM
MATERIALCOPPER ALLOY 170 OR COPPER ALLOY 172
RING STYLEEXTERNAL BOWED
STRENGTH RATING200000.0 POUNDS PER SQUARE INCH MINIMUM TENSILE
USAGE DESIGNEXTERNAL


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