The Shaft,drive,flexible, cataloged under National Stock Number 3040-00-540-5432, 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 17 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 | 3040-00-540-5432 |
| Primary Part Number | 81037 |
| Item Name | Shaft,drive,flexible |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | L3harris Technologies, Inc Div Space & Airborne Systems |
| Status | ACTIVE |
| Spline Pitch | 48 |
| Cross Section Size and Location | 0.406 INCHES NOMINAL DIAMETER IN |
| Size Designator | 0.750 IN. ACROSS FLATS IN |
| Spline Length | 0.250 INCHES NOMINAL IN |
| Pitch Diameter | 0.250 INCHES NOMINAL IN |
| Outside Diameter | 0.150 INCHES NOMINAL IN |
| Spline Pressure Angle in Deg | 14.500 |
| Spline Quantity | 12 |
| End Overall Length | 0.938 INCHES NOMINAL IN |
| End Overall Length | 2.000 INCHES NOMINAL IN |
| Unit Type | WIRE WOUND |
| Unthreaded Securing Hole Location | SPACED 1-1/2 IN. C TO C APPROX,ONE HOLE OFFSET 5/16 IN. APPROX IN |
| Material | STEEL SHAFT |
| Hole Diameter | 0.188 INCHES NOMINAL IN |
| End Type | GEAR |
| End Type | ROUND, INTERNAL SPLINED |
| Unthreaded Securing Hole Quantity | 2 |
| 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 |
|---|---|
| 81037 PRIMARY | L3harris Technologies, Inc Div Space & Airborne Systems (USA) |
NSN 3040-00-540-5432 is a Shaft,drive,flexible, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-540-5432 has 1 manufacturer part number on file: 81037 (L3harris Technologies, Inc Div Space & Airborne Systems).
3 possible matches (shared part number, not a government interchangeability claim): 2530-00-558-5636, 7690-01-261-7959, 8125-01-648-0222. Verify interchangeability with system specifications before substitution.
Key specifications for 81037: Spline Pitch: 48; Cross Section Size and Location: 0.406 INCHES NOMINAL DIAMETER IN; Size Designator: 0.750 IN. ACROSS FLATS IN; Spline Length: 0.250 INCHES NOMINAL IN. 17 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.