The Knob, cataloged under National Stock Number 5355-00-004-3959, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Riimic, Llc Dba Sunair Electronics. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5355-00-004-3959 |
| Primary Part Number | 033980001 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Riimic, Llc Dba Sunair Electronics |
| Status | ACTIVE |
| Shank Diameter | 0.453 INCHES NOMINAL IN |
| Distance From Hole Center to Knob/skirt Base | 0.315 INCHES NOMINAL IN |
| Shaft Accommodation Style | ROUND |
| Overall Thickness | 0.687 INCHES NOMINAL IN |
| Shank Length | 0.062 INCHES NOMINAL IN |
| Style Designator | ROUND WITH CROWN |
| Outside Diameter | 0.500 INCHES NOMINAL IN |
| Setscrew Hole Quantity | 1 |
| Nominal Thread Size | 0.138 INCHES SCREW HOLE IN |
| Inside Diameter | 0.127 INCHES NOMINAL IN |
| Shank Style | STRAIGHT |
| Gripping Surface Condition | GRIP AID |
| Screw Drive Type | HEXAGON SOCKET |
| Thread Quantity Per Inch | 32 SCREW HOLE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| 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 |
|---|---|
| 033980001 | Riimic, Llc Dba Sunair Electronics (USA) |
| Reference | Meaning |
|---|---|
| 33980-1 | 5/9 Secondary reference Riimic, Llc Dba Sunair Electronics |
| SSN50L1BLK | 3/9 Design control — primary reference The Buckeye Stamping Company |
NSN 5355-00-004-3959 is a Knob, manufactured by Riimic, Llc Dba Sunair Electronics, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-004-3959 has 1 manufacturer part number on file: 033980001 (Riimic, Llc Dba Sunair Electronics).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-268-1993. Verify interchangeability with system specifications before substitution.
Key specifications for 033980001: Shank Diameter: 0.453 INCHES NOMINAL IN; Distance From Hole Center to Knob/skirt Base: 0.315 INCHES NOMINAL IN; Shaft Accommodation Style: ROUND; Overall Thickness: 0.687 INCHES NOMINAL IN. 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.