The Gear,worm, cataloged under National Stock Number 3020-01-306-6439, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Rexnord Industries Llc. 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 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 | 3020-01-306-6439 |
| Primary Part Number | 212117 |
| Item Name | Gear,worm |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Rexnord Industries Llc |
| Status | ACTIVE |
| Thread Form Direction | RIGHT-HAND |
| Bore Style | PLAIN BOTH ENDS |
| Face Type | CONCAVE |
| Style Designator | HUBLESS |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 333-134 REF 3A4 | Rexnord Industries Llc (USA) |
| 212117 PRIMARY | Rexnord Industries Llc (USA) |
NSN 3020-01-306-6439 is a Gear,worm, manufactured by Rexnord Industries Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-306-6439 has 2 manufacturer part numbers on file: 333-134 REF 3A4 (Rexnord Industries Llc), 212117 (Rexnord Industries Llc).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-576-9117. Verify interchangeability with system specifications before substitution.
Key specifications for 212117: Thread Form Direction: RIGHT-HAND; Bore Style: PLAIN BOTH ENDS; Face Type: CONCAVE; Style Designator: HUBLESS. 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.