| NAVAL SEA SYSTEMS COMMAND | 53711 |
| ELECTRIC BOAT CORPORATION | 96169 |
| MINNESOTA RUBBER CO | 7322 |
| CROSS-SECTIONAL SHAPE STYLE | SPECIAL |
| CROSS-SECTIONAL HEIGHT | 0.139 INCHES NOMINAL |
| CENTER HOLE DIAMETER | 1.359 INCHES NOMINAL |
| PERIPHERAL DIAMETER | 1.637 INCHES NOMINAL |
| HARDNESS RATING | 65.0 SHORE DUROMETER A MINIMUM OVERALL AND 75.0 SHORE DUROMETER A MAXIMUM OVERALL |
| MATERIAL | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL OR RUBBER POLYESTER URETHANE CLASS AU OVERALL OR RUBBER POLYETHER URETHANE CLASS EU OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM D2000 5BG715B14E14F ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-Z-325,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| 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. |
