The Gearshaft,spur, cataloged under National Stock Number 3040-00-607-9504, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 4 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. 3 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 | 3040-00-607-9504 |
| Primary Part Number | 81021 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | L3harris Technologies, Inc Div Space & Airborne Systems |
| Status | ACTIVE |
| Shaft Material | STEEL |
| Longer Shaft Segment Length | 3.406 INCHES NOMINAL IN |
| Gear Material | STEEL |
| Face Width | 0.125 INCHES NOMINAL IN |
| 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 |
|---|---|
| 81021 PRIMARY | L3harris Technologies, Inc Div Space & Airborne Systems (USA) |
NSN 3040-00-607-9504 is a Gearshaft,spur, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-607-9504 has 1 manufacturer part number on file: 81021 (L3harris Technologies, Inc Div Space & Airborne Systems).
3 possible matches (shared part number, not a government interchangeability claim): 5962-01-122-1918, 4310-01-124-5134, 6515-01-714-1230. Verify interchangeability with system specifications before substitution.
Key specifications for 81021: Shaft Material: STEEL; Longer Shaft Segment Length: 3.406 INCHES NOMINAL IN; Gear Material: STEEL; Face Width: 0.125 INCHES NOMINAL IN. 4 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.