5310-01-210-3102 WASHER,FLAT Index 5330-01-210-3104 PACKING,PREFORMED

National Stock Number:
5330-01-210-3103

Federal Supply Class:
5330

National Item Identification Number:
012103103

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:
730513-273030HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
CENTER HOLE DIAMETER0.728 INCHES MINIMUM AND 0.740 INCHES MAXIMUM
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLESPECIAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-25988 TYPE 2 CLASS 1 GRADE 70 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALRUBBER FLUOROSILICONE CLASS FQ OVERALL
PERIPHERAL DIAMETER0.998 INCHES MINIMUM AND 1.026 INCHES MAXIMUM
PROPRIETARY CHARACTERISTICSPACS


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