The Knob, cataloged under National Stock Number 5355-01-311-7973, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-01-311-7973 |
| Primary Part Number | 803-5959174 PC 123 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Thickness | 1.000 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Outside Diameter | 3.500 INCHES NOMINAL IN |
| Gripping Surface Condition | SMOOTH |
| Attachment Method | THREADED HOLES |
| 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 |
|---|---|
| 803-5959174 PC 123 PRIMARY | Naval Sea Systems Command (USA) |
| 803-5959183 PC 123 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 803-5959183 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5355-01-311-7973 is a Knob, manufactured by Naval Sea Systems Command, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-311-7973 has 2 manufacturer part numbers on file: 803-5959174 PC 123 (Naval Sea Systems Command), 803-5959183 PC 123 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 5315-01-469-0390, 5315-01-469-0406. Verify interchangeability with system specifications before substitution.
Key specifications for 803-5959174 PC 123: Overall Thickness: 1.000 INCHES NOMINAL IN; Style Designator: ROUND; Outside Diameter: 3.500 INCHES NOMINAL IN; Gripping Surface Condition: SMOOTH. 5 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.