The Knob, cataloged under National Stock Number 5355-01-391-8492, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5355-01-391-8492 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Status | ACTIVE |
| Shaft Accommodation Style | ROUND |
| Overall Thickness | 2.125 INCHES NOMINAL IN |
| Outside Diameter | 2.000 INCHES NOMINAL IN |
| Nominal Thread Size | 0.500 INCHES SCREW HOLE IN |
| Inside Diameter | 0.500 INCHES NOMINAL IN |
| Gripping Surface Condition | GRIP AID |
| Thread Quantity Per Inch | 13 SCREW HOLE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| 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 |
|---|---|
| P4078856 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| CL-4-BK | 3/2 Design control — primary reference U.S. Government activity |
NSN 5355-01-391-8492 is a Knob, classified under FSC 5355, Knobs and Pointers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4220-01-718-6331. Verify interchangeability with system specifications before substitution.
Key specifications for 5355-01-391-8492: Shaft Accommodation Style: ROUND; Overall Thickness: 2.125 INCHES NOMINAL IN; Outside Diameter: 2.000 INCHES NOMINAL IN; Nominal Thread Size: 0.500 INCHES SCREW HOLE IN. 9 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.