The 21-1089802 is a the manufacturer industrial component. Key specifications include color: BLACK, material: ALUMINUM ALLOY, shank_style: STRAIGHT, skirt_style: RING, shank_length: 0.156 INCHES NOMINAL IN, skirt_design: NONDETACHABLE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5355-00-161-0704, 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.
| color | BLACK |
| material | ALUMINUM ALLOY |
| shank_style | STRAIGHT |
| skirt_style | RING |
| shank_length | 0.156 INCHES NOMINAL IN |
| skirt_design | NONDETACHABLE |
| overall_depth | 0.410 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN |
| shank_diameter | 0.594 INCHES NOMINAL IN |
| inside_diameter | 0.251 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN |
| outside_diameter | 0.625 INCHES MAXIMUM IN |
| screw_drive_type | CROSS RECESS TYPE 1 |
| special_features | REFERENCE MARKING FILLED W/PHOSPHORESCENT MATERIALS; OBVERSE SIDE BLACK |
| NSN | 5355-00-161-0704 |
| INSIDE DIAMETER | 0.251 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN |
| OVERALL DEPTH | 0.410 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN |
| COLOR | BLACK |
| SPECIAL FEATURES | REFERENCE MARKING FILLED W/PHOSPHORESCENT MATERIALS; OBVERSE SIDE BLACK |
| SCREW DRIVE TYPE | CROSS RECESS TYPE 1 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| COLOR | BLACK |
| SKIRT DESIGN | NONDETACHABLE |
| MATERIAL | ALUMINUM ALLOY |
| NOMINAL THREAD SIZE | 0.138 INCHES SCREW HOLE IN |