The Collar,shaft, cataloged under National Stock Number 3040-00-554-2137, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 5 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 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 | 3040-00-554-2137 |
| Primary Part Number | 177652 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Style Designator | PLAIN ROUND |
| Outside Diameter | 0.477 INCHES MINIMUM AND 0.491 INCHES MAXIMUM IN |
| Bore Diameter | 0.1875 INCHES MINIMUM AND 0.1880 INCHES MAXIMUM IN |
| Material | STEEL |
| Thickness | 0.155 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 177652 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
NSN 3040-00-554-2137 is a Collar,shaft, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-554-2137 has 1 manufacturer part number on file: 177652 (Eaton Aerospace, Llc Dba Jackson South).
1 possible match (shared part number, not a government interchangeability claim): 3030-01-240-2756. Verify interchangeability with system specifications before substitution.
Key specifications for 177652: Style Designator: PLAIN ROUND; Outside Diameter: 0.477 INCHES MINIMUM AND 0.491 INCHES MAXIMUM IN; Special Features: C54.0 TO C58.0 ROCKWELL HARDNESS; Bore Diameter: 0.1875 INCHES MINIMUM AND 0.1880 INCHES MAXIMUM IN. 5 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 3040-00-554-2137 has DEMIL Code Q. 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.