The Collar,shaft, cataloged under National Stock Number 3040-01-398-9960, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-398-9960 |
| Primary Part Number | 750239 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Style Designator | ROUND STEPPED |
| Material Document and Classification | AMS 5640 ASSN STD SINGLE MATERIAL RESPONSE |
| Outside Diameter | 0.500 INCHES NOMINAL IN |
| Small End Diameter | 0.370 INCHES NOMINAL IN |
| Bore Diameter | 0.1885 INCHES NOMINAL IN |
| Material | STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3040-01-398-9960 is a Collar,shaft, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-398-9960 has 2 manufacturer part numbers on file: 750239 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 750239 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 750239: Style Designator: ROUND STEPPED; Material Document and Classification: AMS 5640 ASSN STD SINGLE MATERIAL RESPONSE; Outside Diameter: 0.500 INCHES NOMINAL IN; Small End Diameter: 0.370 INCHES NOMINAL IN. 6 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.
NSN 3040-01-398-9960 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.