The Collar,shaft, cataloged under National Stock Number 3040-01-271-3760, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is General Electric Company. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-271-3760 |
| Primary Part Number | 3C3578P04 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Largest Diameter Length | 0.260 INCHES NOMINAL IN |
| Style Designator | ROUND W/DOUBLE CHAMFER |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 4130 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 4130 ASSN STD SINGLE MATERIAL RESPONSE |
| Outside Diameter | 2.500 INCHES NOMINAL IN |
| Chamfer Angle in Deg | 45.0 |
| Bore Diameter | 1.0320 INCHES NOMINAL IN |
| Material | STEEL COMP 4130 |
| Thickness | 0.500 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 |
|---|---|
| 3C3578P04 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 3C3578 | D/9 Drawing number reference only General Electric Company |
NSN 3040-01-271-3760 is a Collar,shaft, manufactured by General Electric Company, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-271-3760 has 1 manufacturer part number on file: 3C3578P04 (General Electric Company).
2 possible matches (shared part number, not a government interchangeability claim): 4310-01-271-6154, 3040-01-314-2183. Verify interchangeability with system specifications before substitution.
Key specifications for 3C3578P04: Largest Diameter Length: 0.260 INCHES NOMINAL IN; Style Designator: ROUND W/DOUBLE CHAMFER; Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 4130 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 4130 ASSN STD SINGLE MATERIAL RESPONSE; Outside Diameter: 2.500 INCHES NOMINAL IN. 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.