The NASM21387 is a the manufacturer industrial component. Key specifications include color: GRAY/GREY AND BLACK AND WHITE, material: COPPER ALLOY AND PLASTIC ACRYLONITRILE-BUTADIENE-STYRENE (ABS) AND STEEL, inside_width: 0.223 INCHES NOMINAL IN, overall_depth: 0.460 INCHES MAXIMUM IN, pointer_design: NONDETACHABLE, inside_diameter: 0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5355-00-544-2987, 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 | GRAY/GREY AND BLACK AND WHITE |
| material | COPPER ALLOY AND PLASTIC ACRYLONITRILE-BUTADIENE-STYRENE (ABS) AND STEEL |
| inside_width | 0.223 INCHES NOMINAL IN |
| overall_depth | 0.460 INCHES MAXIMUM IN |
| pointer_design | NONDETACHABLE |
| inside_diameter | 0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN |
| outside_diameter | 0.750 INCHES NOMINAL IN |
| screw_drive_type | HEXAGON SOCKET |
| special_features | REFERENCE MARKING IS A BLACK INDICA BORDER WITH WHITE LINES |
| style_designator | ROUND |
| attachment_method | SETSCREWS |
| overall_thickness | 0.630 INCHES NOMINAL IN |
| NSN | 5355-00-544-2987 |
| SETSCREW HOLE QUANTITY | 2 |
| OUTSIDE DIAMETER | 0.750 INCHES NOMINAL IN |
| ATTACHMENT METHOD | SETSCREWS |
| DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE | 0.190 INCHES NOMINAL IN |
| OVERALL DEPTH | 0.460 INCHES NOMINAL IN |
| NOMINAL THREAD SIZE | 0.164 INCHES SCREW HOLE IN |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| THREAD QUANTITY PER INCH | 32 SCREW HOLE |
| STYLE DESIGNATOR | ROUND WITH FLUTED FOILS |
| COLOR | GRAY, FED STD 595, 36231 |