The Shaft,shouldered, cataloged under National Stock Number 3040-00-988-9900, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Federal Equipment Co. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-988-9900 |
| Primary Part Number | W230256 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Federal Equipment Co |
| Status | ACTIVE |
| Step Quantity | 8 |
| First End Diameter | 1.2550 INCHES NOMINAL IN |
| Second End Diameter | 1.9400 INCHES NOMINAL IN |
| Largest Step Diameter | 6.438 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Second End Keyway Width | 0.5000 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.248 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | FLAT KEYWAY |
| Material | STEEL |
| External Keyway Length | 2.493 INCHES NOMINAL SECOND END 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 |
|---|---|
| W230256 PRIMARY | Federal Equipment Co (USA) |
| Reference | Meaning |
|---|---|
| D270-447 | 5/9 Secondary reference Greerco Corp |
| W23056 | C/1 Advisory reference — outside the item-of-supply concept Federal Equipment Company Dba Use CAGE Code 60587 for Cataloging |
| D270-444YPCS14X15 | 5/9 Secondary reference Greerco Corp |
NSN 3040-00-988-9900 is a Shaft,shouldered, manufactured by Federal Equipment Co, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-988-9900 has 1 manufacturer part number on file: W230256 (Federal Equipment Co).
Key specifications for W230256: Step Quantity: 8; First End Diameter: 1.2550 INCHES NOMINAL IN; Second End Diameter: 1.9400 INCHES NOMINAL IN; Largest Step Diameter: 6.438 INCHES NOMINAL IN. 11 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.