5331-01-229-0726 O-RING Index 5330-01-229-0728 PACKING,PREFORMED

National Stock Number:
5330-01-229-0727

Federal Supply Class:
5330

National Item Identification Number:
012290727

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:
519023153711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
CENTER HOLE DIAMETER73.600 INCHES NOMINAL
CROSS-SECTIONAL HEIGHT0.930 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-5516 CLASS B MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-R-7362 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
SPECIAL FEATURESTHREE 0.250 IN. DIA MOUNTING HOLES EQUALLY SPACED


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