The Knob, cataloged under National Stock Number 5355-01-226-9873, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-01-226-9873 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.310 INCHES NOMINAL IN |
| Width Across Flats | 0.670 INCHES NOMINAL IN |
| Inside Width | 0.221 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN |
| Shaft Accommodation Style | FLATTED ONE SIDE |
| Overall Thickness | 0.750 INCHES NOMINAL IN |
| Skirt Outside Diameter | 0.880 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | SQUARE |
| Reference Marking | ARROW |
| Setscrew Hole Quantity | 2 |
| Nominal Thread Size | 0.164 INCHES SCREW HOLE IN |
| Inside Diameter | 0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN |
| Gripping Surface Condition | SMOOTH |
| Color | GRAY, FED STD 595, 36231 AND BLACK, LUSTERLESS AND WHITE |
| Skirt Design | NONDETACHABLE |
| Screw Drive Type | HEXAGON SOCKET |
| Thread Quantity Per Inch | 32 SCREW HOLE |
| Material | COPPER ALLOY AND PLASTIC AND STEEL CORROSION RESISTING |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| Skirt Style | STRAIGHT |
| Attachment Method | SETSCREWS |
| 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 |
|---|---|
| MS21385-04ANN | 3/2 Design control — primary reference U.S. Government activity |
| NASM21385 | 3/1 Design control — primary reference U.S. Government activity |
| MS21385-04ANN | 5/9 Secondary reference U.S. Government activity |
NSN 5355-01-226-9873 is a Knob, classified under FSC 5355, Knobs and Pointers. Status: active.
Key specifications for 5355-01-226-9873: Distance From Hole Center to Knob/skirt Base: 0.310 INCHES NOMINAL IN; Width Across Flats: 0.670 INCHES NOMINAL IN; Inside Width: 0.221 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN; Shaft Accommodation Style: FLATTED ONE SIDE. 21 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.