The Knob, cataloged under National Stock Number 5355-00-721-8985, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 19 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 | 5355-00-721-8985 |
| Primary Part Number | 9056044 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Shank Diameter | 0.500 INCHES NOMINAL IN |
| Distance From Hole Center to Knob/skirt Base | 0.321 INCHES MINIMUM AND 0.326 INCHES MAXIMUM IN |
| Shaft Accommodation Style | ROUND |
| Overall Thickness | 0.830 INCHES MINIMUM AND 0.835 INCHES MAXIMUM IN |
| Shank Length | 0.040 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN |
| Style Designator | ROUND |
| Outside Diameter | 1.000 INCHES MAXIMUM IN |
| Reference Marking | LINE |
| Setscrew Hole Quantity | 2 |
| Nominal Thread Size | 0.164 INCHES SCREW HOLE IN |
| Inside Diameter | 0.250 INCHES NOMINAL IN |
| Shank Style | STRAIGHT |
| Gripping Surface Condition | GRIP AID |
| Color | WHITE |
| Surface Treatment | BLACK OXIDE |
| Thread Quantity Per Inch | 36 SCREW HOLE |
| Material | STEEL CORROSION RESISTING |
| Thread Series Designator | UNF 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 |
|---|---|
| 9056044 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 5355-00-721-8985 is a Knob, manufactured by Us Army Aviation and Missile Command, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-721-8985 has 1 manufacturer part number on file: 9056044 (Us Army Aviation and Missile Command).
1 possible match (shared part number, not a government interchangeability claim): 4710-01-083-0533. Verify interchangeability with system specifications before substitution.
Key specifications for 9056044: Shank Diameter: 0.500 INCHES NOMINAL IN; Distance From Hole Center to Knob/skirt Base: 0.321 INCHES MINIMUM AND 0.326 INCHES MAXIMUM IN; Shaft Accommodation Style: ROUND; Overall Thickness: 0.830 INCHES MINIMUM AND 0.835 INCHES MAXIMUM IN. 19 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.