- to mount filters or other attachments to lenses with various mounting sizes<br>- precision metal ring with matt black surface<br>- warning: small filters on large lenses can result vignetting - especially in strong light or wide angles This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-548-6623, 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 | COPPER ALLOY OVERALL |
| nut_style | HEXAGON |
| body_width | 0.750 INCHES NOMINAL IN |
| body_height | 0.813 INCHES NOMINAL IN |
| body_length | 1.625 INCHES NOMINAL IN |
| thread_length | 0.187 INCHES IN |
| thread_series | ISO M |
| inclosure_type | OPEN |
| overall_height | 0.548 INCHES IN |
| mounting_method | FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP |
| frequency_rating | 100.0 HERTZ MINIMUM AND 10.0 KILOHERTZ MAXIMUM SINGLE COMPONENT |
| largest_diameter | 0.145 INCHES SINGLE END IN |
| NSN | 3110-00-548-6623 |