The Knob, cataloged under National Stock Number 5355-00-021-4580, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-00-021-4580 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Status | ACTIVE |
| Nominal Thread Size | 0.250 INCHES STUD IN |
| Shank Style | STRAIGHT |
| Gripping Surface Condition | SMOOTH |
| Color | BLACK |
| Thread Quantity Per Inch | 20 STUD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) STUD |
| Attachment Method | STUD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 105-1813-006 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5355-00-021-4580 is a Knob, classified under FSC 5355, Knobs and Pointers. Status: active.
Key specifications for 5355-00-021-4580: Nominal Thread Size: 0.250 INCHES STUD IN; Shank Style: STRAIGHT; Gripping Surface Condition: SMOOTH; Color: BLACK. 7 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.