4920-00-486-4139 SUPPORT,THROTTLE CO Index 2935-00-486-4154 PIN

National Stock Number:
5330-00-486-4142

Federal Supply Class:
5330

National Item Identification Number:
004864142

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:
68B458009-20309257TRELLEBORG SEALING SOLUTIONS US, INC.
68B458009-20376301THE BOEING COMPANY
966296-11509257TRELLEBORG SEALING SOLUTIONS US, INC.
966296-11593835PARKER HANNIFIN CORPORATION


Techincal Specification:
CENTER HOLE DIAMETER0.542 INCHES NOMINAL
CROSS-SECTIONAL HEIGHT0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLEV
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
PERIPHERAL DIAMETER0.871 INCHES MINIMUM AND 0.876 INCHES MAXIMUM


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