The Knob, cataloged under National Stock Number 5355-01-257-9180, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-01-257-9180 |
| Primary Part Number | 7-362120173-9 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Overall Thickness | 1.750 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Outside Diameter | 2.000 INCHES NOMINAL IN |
| Gripping Surface Condition | GRIP AID |
| Material | STEEL CORROSION RESISTING |
| Attachment Method | HOLE |
| 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 |
|---|---|
| 7-362120173-9 | Rotair Aerospace Corp (USA) |
| 7-362120173-9 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 7-362120173-9 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 5355-01-257-9180 is a Knob, manufactured by The Boeing Company, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-257-9180 has 2 manufacturer part numbers on file: 7-362120173-9 (Rotair Aerospace Corp), 7-362120173-9 (The Boeing Company).
Key specifications for 7-362120173-9: Overall Thickness: 1.750 INCHES NOMINAL IN; Style Designator: ROUND; Outside Diameter: 2.000 INCHES NOMINAL IN; Gripping Surface Condition: GRIP AID. 6 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.