The Knob, cataloged under National Stock Number 5355-00-920-5477, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-00-920-5477 |
| Primary Part Number | 2177521 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Shaft Accommodation Style | ROUND |
| Overall Thickness | 1.506 INCHES NOMINAL IN |
| Skirt Outside Diameter | 1.510 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Reference Marking | DOT AND TRIANGLE |
| Setscrew Hole Quantity | 4 |
| Nominal Thread Size | 0.164 INCHES SCREW HOLE IN |
| Gripping Surface Condition | GRIP AID |
| Color | WHITE |
| Skirt Design | NONDETACHABLE |
| Thread Quantity Per Inch | 32 SCREW HOLE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| Skirt Style | FLARED |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 2177521 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5355-00-920-5477 is a Knob, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-920-5477 has 1 manufacturer part number on file: 2177521 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-483-4368. Verify interchangeability with system specifications before substitution.
Key specifications for 2177521: Shaft Accommodation Style: ROUND; Overall Thickness: 1.506 INCHES NOMINAL IN; Skirt Outside Diameter: 1.510 INCHES NOMINAL IN; Style Designator: ROUND. 14 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.