5330-00-918-4872 RING,BACK UP Index 5330-00-918-4878 SEAL,PLAIN ENCASED

National Stock Number:
5330-00-918-4873

Federal Supply Class:
5330

National Item Identification Number:
009184873

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:
QR4008-366Y07322MINNESOTA RUBBER CO


Techincal Specification:
MATERIALRUBBER SYNTHETIC OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION366Y FSCM 07322 MFR REF SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING55.0 SHORE DUROMETER A MINIMUM AND
65.0 SHORE DUROMETER A MAXIMUM OVERALL
CROSS-SECTIONAL SHAPE STYLESPECIAL
CROSS-SECTIONAL HEIGHT0.062 INCHES NOMINAL
CENTER HOLE DIAMETER0.188 INCHES NOMINAL
PERIPHERAL DIAMETER0.312 INCHES NOMINAL
TEMP RATING-20.0 DEG FAHRENHEIT AND
300.0 DEG FAHRENHEIT


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