The Shaft,shouldered, cataloged under National Stock Number 3040-00-770-8385, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-770-8385 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Second End External Thread Length | 1.312 INCHES NOMINAL IN |
| Step Quantity | 1 |
| First End Diameter | 0.8700 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN |
| First End Style | INTERNAL THREADED |
| First End Internal Thread Length | 1.500 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 805-1400053PC3 | 5/9 Secondary reference U.S. Government activity |
| 803-6397269 PC122 | 3/2 Design control — primary reference U.S. Government activity |
| 3040PL1339077 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 3040-00-770-8385 is a Shaft,shouldered, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2040-01-440-7327. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-00-770-8385: Second End External Thread Length: 1.312 INCHES NOMINAL IN; Step Quantity: 1; First End Diameter: 0.8700 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN; First End Style: INTERNAL THREADED. 8 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.