5360-01-393-7807 SPRING,HELICAL,COMPRESSION Index 5365-01-393-7809 SPACER,SLEEVE

National Stock Number:
5330-01-393-7808

Federal Supply Class:
5330

National Item Identification Number:
013937808

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:
803-6397408-PC03753711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
CENTER HOLE DIAMETER0.737 INCHES MINIMUM AND 0.763 INCHES MAXIMUM
CROSS-SECTIONAL HEIGHT0.237 INCHES MINIMUM AND 0.263 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D 2000 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
PERIPHERAL DIAMETER1.855 INCHES MINIMUM AND 1.895 INCHES MAXIMUM


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