The Collar,shaft, cataloged under National Stock Number 3040-00-251-2168, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-251-2168 |
| Primary Part Number | 149497PC6 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Securing Hole Type and Location | THREADED 1ST HOLE AND TAPER PIN PILOT 2ND HOLE |
| Largest Diameter Length | 0.250 INCHES NOMINAL IN |
| Style Designator | ROUND W/SINGLE CHAMFER |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 416 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 51416 ASSN STD SINGLE MATERIAL RESPONSE |
| Screw Thread Series Designator and Location | 1ST HOLE UNIFIED NATIONAL COARSE (UNC) |
| Outside Diameter | 0.625 INCHES NOMINAL IN |
| Nominal Thread Size | 0.138 INCHES THREAD IN |
| Angle Between Centerlines of Securing Holes in Deg | 90.0 |
| Securing Hole Quantity | 2 |
| Chamfer Angle in Deg | 45.0 |
| Bore Diameter | 0.3751 INCHES MINIMUM AND 0.3754 INCHES MAXIMUM IN |
| Material | STEEL COMP 416 |
| Tapered Pin Size Accommodated and Location | 4/0 2ND HOLE |
| Thickness | 0.310 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 |
NSN 3040-00-251-2168 is a Collar,shaft, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-251-2168 has 2 manufacturer part numbers on file: 149497-6 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 149497PC6 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 149497PC6: Securing Hole Type and Location: THREADED 1ST HOLE AND TAPER PIN PILOT 2ND HOLE; Largest Diameter Length: 0.250 INCHES NOMINAL IN; Style Designator: ROUND W/SINGLE CHAMFER; Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OR AISI 416 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 51416 ASSN STD SINGLE MATERIAL RESPONSE. 14 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.