3950-01-161-0140 WINCH,DRUM,HAND OPERATED Index 3110-01-161-0143 BEARING,BALL,ANNULAR

National Stock Number:
5330-01-161-0142

Federal Supply Class:
5330

National Item Identification Number:
011610142

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:
M25988/1-91881349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-DTL-25988/181349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-R-25988/181349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
ELONGATION PERCENTAGE125 MAXIMUM
CENTER HOLE DIAMETER1.343 INCHES MINIMUM AND 1.367 INCHES MAXIMUM
CROSS-SECTIONAL HEIGHT0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM
MATERIALRUBBER FLUOROSILICONE CLASS FQ
PERIPHERAL DIAMETER1.587 INCHES NOMINAL


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