7025-01-539-8070 TRACKBALL,DATA ENTRY Index 4730-01-539-8072 COUPLING,TUBE

National Stock Number:
5330-01-539-8071

Federal Supply Class:
5330

National Item Identification Number:
015398071

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:
803-1385541-041-33A80064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
CENTER HOLE DIAMETER0.880 INCHES MINIMUM AND 0.895 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
CROSS-SECTIONAL HEIGHT0.312 INCHES NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCYGRAPHITIC SEAL RING
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-24503 TY II, CL 2, GRADE N, DIE FORMED MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALGRAPHITE OVERALL
PERIPHERAL DIAMETER1.480 INCHES MINIMUM AND 1.495 INCHES MAXIMUM


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