The Knob, cataloged under National Stock Number 5355-00-404-3993, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company. Government technical data includes 9 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 | 5355-00-404-3993 |
| Primary Part Number | 147972-1 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| Overall Thickness | 0.980 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Outside Diameter | 0.375 INCHES NOMINAL IN |
| Unthreaded Stud Style | ROUND |
| Gripping Surface Condition | SMOOTH |
| Material | STEEL COMP 303 |
| Stud Overall Depth | 0.520 INCHES NOMINAL IN |
| Stud Diameter | 0.3107 INCHES MINIMUM AND 0.3118 INCHES MAXIMUM IN |
| Attachment Method | UNTHREADED STUD |
| 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 |
|---|---|
| 147972-1 PRIMARY | Raytheon Company (USA) |
NSN 5355-00-404-3993 is a Knob, manufactured by Raytheon Company, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-404-3993 has 1 manufacturer part number on file: 147972-1 (Raytheon Company).
1 possible match (shared part number, not a government interchangeability claim): 5995-01-279-9433. Verify interchangeability with system specifications before substitution.
Key specifications for 147972-1: Overall Thickness: 0.980 INCHES NOMINAL IN; Style Designator: ROUND; Outside Diameter: 0.375 INCHES NOMINAL IN; Unthreaded Stud Style: ROUND. 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.