The Collar,shaft, cataloged under National Stock Number 3040-00-157-9601, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Toastmaster Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-157-9601 |
| Primary Part Number | C554A9 |
| Item Name | Collar,shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Toastmaster Inc |
| Status | ACTIVE |
| Style Designator | PLAIN ROUND |
| Outside Diameter | 2.000 INCHES NOMINAL IN |
| Securing Hole Quantity | 3 |
| Surface Treatment | CHROMATE ZINC AND PAINT |
| Bore Diameter | 0.7500 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Thickness | 0.594 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 |
|---|---|
| C554A9 PRIMARY | Toastmaster Inc (USA) |
| Reference | Meaning |
|---|---|
| 495751 | D/9 Drawing number reference only Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 3040-00-157-9601 is a Collar,shaft, manufactured by Toastmaster Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-157-9601 has 1 manufacturer part number on file: C554A9 (Toastmaster Inc).
Key specifications for C554A9: Style Designator: PLAIN ROUND; Outside Diameter: 2.000 INCHES NOMINAL IN; Securing Hole Quantity: 3; Surface Treatment: CHROMATE ZINC AND PAINT. 7 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.