The Collar,shaft, cataloged under National Stock Number 3040-01-238-3944, 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. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Collar,shaft |
| FSC / FSG | 3040 — Miscellaneous Power Transmission Equipment (FSG 30) |
| Manufacturers | General Electric Company (CAGE 01289) |
| Parameter | Value |
|---|---|
| NSN | 3040-01-238-3944 |
| Primary Part Number | 637A460 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 7378E19 PIECE 7 | General Electric Company (USA) |
| 637A460 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 7378E19 | D/9 Drawing number reference only General Electric Company |
NSN 3040-01-238-3944 is a Collar,shaft, manufactured by General Electric Company, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-238-3944 has 2 manufacturer part numbers on file: 7378E19 PIECE 7 (General Electric Company), 637A460 (General Electric Company).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-238-5792, 3040-01-238-6969. Verify interchangeability with system specifications before substitution.
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.