The Knob, cataloged under National Stock Number 5355-00-644-1055, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-00-644-1055 |
| Primary Part Number | P7708220P5 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Shaft Accommodation Style | ROUND |
| Overall Thickness | 0.625 INCHES NOMINAL IN |
| Skirt Outside Diameter | 1.062 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Outside Diameter | 1.000 INCHES NOMINAL IN |
| Setscrew Hole Quantity | 2 |
| Nominal Thread Size | 0.164 INCHES SCREW HOLE IN |
| Inside Diameter | 0.251 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN |
| Gripping Surface Condition | GRIP AID |
| Color | BLACK |
| Skirt Design | NONDETACHABLE |
| Screw Drive Type | HEXAGON SOCKET |
| 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 |
|---|---|
| P7708220P5 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| P7708220P5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5355-00-644-1055 is a Knob, manufactured by Westinghouse Electric Corp, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-644-1055 has 1 manufacturer part number on file: P7708220P5 (Westinghouse Electric Corp).
Key specifications for P7708220P5: Shaft Accommodation Style: ROUND; Overall Thickness: 0.625 INCHES NOMINAL IN; Skirt Outside Diameter: 1.062 INCHES NOMINAL IN; Style Designator: ROUND. 16 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.