5331-00-003-6652 O-RING Index 5365-00-003-6654 SPACER,RING

National Stock Number:
5330-00-003-6653

Federal Supply Class:
5330

National Item Identification Number:
000036653

Description:
PACKING,PREFORMED

Detail:
A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see WASHER (as modified) and GASKET. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see SEAL, NONMETALLIC ANGLE; SEAL, NONMETALLIC CHANNEL; and SEAL, NONMETALLIC, SPECIAL SHAPED SECTION. For circular (with aperature) nonmetallic items with a solid round cross-section see O-RING. Excludes CUP, COMPRESSION; GASKET; WASHER (as modified); and FELT, MECHANICAL, PREFORMED.


Manufacturer Information:
AN6230B1988044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
CENTER HOLE DIAMETER3.844 INCHES MINIMUM AND 3.874 INCHES MAXIMUM
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLEO-RING
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY FEATURE
HARDNESS RATING65.0 SHORE DUROMETER A MINIMUM AND 71.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-5516,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
SPECIAL FEATURESCERTIFIED FREE FROM MERCURY CONTAMINATION
TEMP RATING-65.0 FAHRENHEIT AND 160.0 FAHRENHEIT


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