The Collar,shaft, cataloged under National Stock Number 3040-00-980-3071, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Cooper Machinery Services Llc. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-980-3071 |
| Primary Part Number | H-4086-A |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Cooper Machinery Services Llc |
| Status | ACTIVE |
| Securing Hole Type and Location | THREADED 1ST HOLE |
| Securing Hole Type and Location | THREADED 2ND HOLE |
| Securing Hole Type and Location | UNTHREADED 3RD HOLE |
| Largest Diameter Length | 0.500 INCHES NOMINAL IN |
| Style Designator | ROUND W/SINGLE CHAMFER |
| Screw Thread Series Designator and Location | 1ST HOLE UNIFIED NATIONAL COARSE (UNC) |
| Screw Thread Series Designator and Location | 2ND HOLE UNIFIED NATIONAL COARSE (UNC) |
| Outside Diameter | 3.250 INCHES NOMINAL IN |
| Hole Diameter and Location | 0.3750 INCHES NOMINAL 3RD HOLE IN |
| Nominal Thread Size | 0.375 INCHES THREAD IN |
| Angle Between Centerlines of Securing Holes in Deg | 90.0 |
| Securing Hole Quantity | 3 |
| Chamfer Angle in Deg | 45.0 |
| Bore Diameter | 2.1250 INCHES NOMINAL IN |
| Material | STEEL |
| Thickness | 0.750 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 |
|---|---|
| H-4086-A PRIMARY | Cooper Machinery Services Llc (USA) |
NSN 3040-00-980-3071 is a Collar,shaft, manufactured by Cooper Machinery Services Llc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-980-3071 has 1 manufacturer part number on file: H-4086-A (Cooper Machinery Services Llc).
Key specifications for H-4086-A: Securing Hole Type and Location: THREADED 1ST HOLE; Securing Hole Type and Location: THREADED 2ND HOLE; Securing Hole Type and Location: UNTHREADED 3RD HOLE; Largest Diameter Length: 0.500 INCHES NOMINAL IN. 16 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.