5330-00-892-4144 O-RING Index 5330-00-892-4147 PACKING,PREFORMED

National Stock Number:
5330-00-892-4146

Federal Supply Class:
5330

National Item Identification Number:
008924146

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:
MILR25897CTYPE2CLASS181349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
Q31VIT0NA07322MINNESOTA RUBBER CO


Techincal Specification:
CENTER HOLE DIAMETER1.875 INCHES NOMINAL
CROSS-SECTIONAL HEIGHT0.187 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLESPECIAL
HARDNESS RATING70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM OVERALL
MATERIALRUBBER SYNTHETIC OVERALL
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 1 CLASS
PERIPHERAL DIAMETER2.250 INCHES NOMINAL


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