The BEARING,ROLLER,TAPERED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, flow_angle: 45.0 DEGREES, leg_length: 2.990 INCHES NOMINAL SECOND END IN, seat_angle: 37.0 DEGREES FIRST END, thread_class: 3B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6650-00-382-1898, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
| material | STEEL OVERALL |
| flow_angle | 45.0 DEGREES |
| leg_length | 2.990 INCHES NOMINAL SECOND END IN |
| seat_angle | 37.0 DEGREES FIRST END |
| thread_class | 3B FIRST END |
| connection_type | THREADED INTERNAL TUBE FIRST END |
| connection_style | SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END |
| special_features | GRUMMAN; A10 AIRCRAFT |
| surface_treatment | CADMIUM OVERALL |
| nominal_thread_size | 0.750 INCHES FIRST END IN |
| maximum_operating_temp | 200.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| thread_series_designator | UNF FIRST END |
| NSN | 6650-00-382-1898 |
| ABBE CONSTANT | 57.400 AND 36.600 |
| REFRACTION INDEX | 1.5720 NOMINAL AND 1.6190 NOMINAL |
| COMPOUND LENS STYLE | DOUBLET |
| FSC APPLICATION DATA | FIRE CONTROL,TELESCOPE,MK 74 |
| MATERIAL | GLASS OPTICAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| AXIAL THICKNESS | 0.276 INCHES NOMINAL AND 0.118 INCHES NOMINAL IN |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| COMPOUND LENS EDGE THICKNESS | 0.324 INCHES NOMINAL IN |
| ELEMENT RIGHT SURFACE RADIUS | -2.323 INCHES AND -18.915 INCHES IN |