The Collar,shaft, cataloged under National Stock Number 3040-00-554-8603, 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 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-554-8603 |
| Primary Part Number | 340525 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Securing Hole Type and Location | UNTHREADED SINGLE HOLE |
| Style Designator | PLAIN ROUND |
| Material Document and Classification | AMS 5645 ASSN STD SINGLE MATERIAL RESPONSE |
| Outside Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Hole Diameter and Location | 0.0940 INCHES MINIMUM SINGLE HOLE AND 0.0990 INCHES MAXIMUM SINGLE HOLE IN |
| Securing Hole Quantity | 1 |
| Bore Diameter | 0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN |
| Material | STEEL COMP 321 |
| Thickness | 0.270 INCHES MINIMUM AND 0.290 INCHES MAXIMUM 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 |
|---|---|
| 340525 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 340525 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
NSN 3040-00-554-8603 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 3040-00-554-8603 has 1 manufacturer part number on file: 340525 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 340525: Securing Hole Type and Location: UNTHREADED SINGLE HOLE; Style Designator: PLAIN ROUND; Material Document and Classification: AMS 5645 ASSN STD SINGLE MATERIAL RESPONSE; Outside Diameter: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN. 9 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.