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National Stock Number:
5330-01-467-4082
Federal Supply Class:
5330
National Item Identification Number:
014674082
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.
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Manufacturer Information:
| 249 | 23515 | FREDERICK CUSTOM MACHINING INC | | 30756-D ITEM NO. 249 | 23515 | FREDERICK CUSTOM MACHINING INC |
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Techincal Specification:
| CENTER HOLE DIAMETER | 0.875 INCHES NOMINAL | | CROSS-SECTIONAL HEIGHT | 0.250 INCHES NOMINAL | | CROSS-SECTIONAL SHAPE STYLE | D | | MATERIAL | GRAPHITE OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | PACKING, AUXILIARY SEAL | | PERIPHERAL DIAMETER | 1.250 INCHES NOMINAL | | SPECIAL FEATURES | AUXILIARY GLAND PACKING PART NO 249 IS TO BE INSTALLED ONLY IN THE EVENT OF MECHANICAL SEAL FAILURE |
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