The Collar,shaft, cataloged under National Stock Number 3040-01-499-6699, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-499-6699 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Largest Diameter Length | 0.500 INCHES NOMINAL IN |
| Screw Thread Quantity Per Inch and Location | 16 SINGLE HOLE |
| Style Designator | ROUND STEPPED |
| Screw Thread Series Designator and Location | SINGLE HOLE UNF |
| Outside Diameter | 1.6875 INCHES NOMINAL IN |
| Nominal Thread Size | 0.750 INCHES SINGLE HOLE IN |
| Small End Diameter | 1.248 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN |
| Bore Diameter | 0.7500 INCHES NOMINAL IN |
| Material | STEEL |
| Thickness | 1.000 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 |
| Reference | Meaning |
|---|---|
| JE3055-2 | 3/2 Design control — primary reference U.S. Government activity |
| JE-1153-8 | 5/1 Secondary reference U.S. Government activity |
NSN 3040-01-499-6699 is a Collar,shaft, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2040-01-500-1657. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-499-6699: Largest Diameter Length: 0.500 INCHES NOMINAL IN; Screw Thread Quantity Per Inch and Location: 16 SINGLE HOLE; Style Designator: ROUND STEPPED; Screw Thread Series Designator and Location: SINGLE HOLE UNF. 10 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.