The Knob, cataloged under National Stock Number 5355-00-049-4178, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5355-00-049-4178 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Status | ACTIVE |
| Shank Diameter | 0.250 INCHES NOMINAL IN |
| Shaft Accommodation Style | ROUND |
| Overall Thickness | 0.765 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN |
| Skirt Outside Diameter | 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Shank Length | 0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN |
| Style Designator | ROUND |
| Outside Diameter | 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.112 INCHES RECEPTACLE IN |
| Inside Diameter | 0.112 INCHES NOMINAL IN |
| Shank Style | STRAIGHT |
| Gripping Surface Condition | GRIP AID |
| Color | BLACK |
| Skirt Design | NONDETACHABLE |
| Thread Quantity Per Inch | 40 RECEPTACLE |
| Material | ALUMINUM ALLOY |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) RECEPTACLE |
| Skirt Style | RING |
| Attachment Method | SCREW ON |
| 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 |
|---|---|
| WG204L | 3/9 Design control — primary reference Elgin National Industries Inc |
NSN 5355-00-049-4178 is a Knob, classified under FSC 5355, Knobs and Pointers. Status: active.
Key specifications for 5355-00-049-4178: Shank Diameter: 0.250 INCHES NOMINAL IN; Shaft Accommodation Style: ROUND; Overall Thickness: 0.765 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN; Skirt Outside Diameter: 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN. 18 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.