The Collar,shaft, cataloged under National Stock Number 3040-01-504-0044, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-504-0044 |
| Primary Part Number | 124-6938645 PART 248 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Securing Hole Type and Location | UNTHREADED ALL HOLES |
| Style Designator | PLAIN ROUND |
| Outside Diameter | 1.125 INCHES NOMINAL IN |
| Hole Diameter and Location | 0.6250 INCHES NOMINAL ALL HOLES IN |
| Securing Hole Quantity | 2 |
| Bore Diameter | 0.1406 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Thickness | 0.343 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 |
|---|---|
| 124-6938645 PART 248 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6938645 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-504-0044 is a Collar,shaft, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-504-0044 has 1 manufacturer part number on file: 124-6938645 PART 248 (Naval Sea Systems Command).
3 possible matches (shared part number, not a government interchangeability claim): 3040-01-504-0772, 3120-01-504-0788, 3040-01-504-4839. Verify interchangeability with system specifications before substitution.
Key specifications for 124-6938645 PART 248: Securing Hole Type and Location: UNTHREADED ALL HOLES; Style Designator: PLAIN ROUND; Outside Diameter: 1.125 INCHES NOMINAL IN; Hole Diameter and Location: 0.6250 INCHES NOMINAL ALL HOLES 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.