The Shaft,straight, cataloged under National Stock Number 3040-01-498-4299, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-498-4299 |
| Primary Part Number | 518-4457096-56 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| Second End Hole Diameter | 0.2810 INCHES MINIMUM AND 0.2820 INCHES MAXIMUM IN |
| First End Diameter | 0.6240 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN |
| Second End Diameter | 0.6240 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| Material Document and Classification | QQ-N-281 CLASS A,COLD DRAWN,ANNEALED & AGE HARDENED FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Distance From Hole Center to End | 4.0625 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | UNTHREADED CROSS DRILLED |
| Material | NICKEL ALLOY K-500 |
| 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 |
|---|---|
| 518-4457096-56 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 2013-54-56 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| H600-2013-54-56 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 518-4457096 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 3040-01-498-4299 is a Shaft,straight, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-498-4299 has 3 manufacturer part numbers on file: 518-4457096-56 (Huntington Ingalls Inc Div Newport News Shipbuilding), 2013-54-56 (Huntington Ingalls Inc Div Newport News Shipbuilding), H600-2013-54-56 (Huntington Ingalls Inc Div Newport News Shipbuilding).
2 possible matches (shared part number, not a government interchangeability claim): 3120-01-506-5587, 3120-01-506-5598. Verify interchangeability with system specifications before substitution.
Key specifications for 518-4457096-56: Surface Finish: 63.0 MICROINCHES; Second End Hole Diameter: 0.2810 INCHES MINIMUM AND 0.2820 INCHES MAXIMUM IN; First End Diameter: 0.6240 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN; Second End Diameter: 0.6240 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN. 10 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.