5330-00-559-8760 PACKING,PREFORMED Index 5330-00-559-8762 PACKING,PREFORMED

National Stock Number:
5330-00-559-8761

Federal Supply Class:
5330

National Item Identification Number:
005598761

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:
12-408-1070W73277HOUGHTON INTERNATIONAL INC.


Techincal Specification:
CENTER HOLE DIAMETER4.250 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLEU
CROSS-SECTIONAL HEIGHT0.375 INCHES MAXIMUM
HARDNESS RATING68.0 SHORE DUROMETER A NOMINAL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-5516,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
PERIPHERAL DIAMETER5.000 INCHES MAXIMUM


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