5310-01-279-3346 WASHER,FLAT Index 5330-01-279-3348 PACKING,PREFORMED

National Stock Number:
5330-01-279-3347

Federal Supply Class:
5330

National Item Identification Number:
012793347

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:
2-23747-07102697PARKER-HANNIFIN CORP
E-126410 PC 703950NAVAL INVENTORY CONTROL POINT MECHANICSBURG


Techincal Specification:
ELONGATION PERCENTAGE338 MAXIMUM
CENTER HOLE DIAMETER3.335 INCHES MINIMUM AND 3.383 INCHES MAXIMUM
CROSS SECTION OUTSIDE DIAMETER0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLEO-RING
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
PERIPHERAL DIAMETER3.605 INCHES MINIMUM AND 3.669 INCHES MAXIMUM
SPECIAL FEATURESMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
TEMP RATING-60.0 FAHRENHEIT AND 180.0 FAHRENHEIT


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