The Shaft,shouldered, cataloged under National Stock Number 3040-01-203-4803, 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 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-203-4803 |
| Primary Part Number | 4457023 PIECE 138 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Material Document and Classification | MIL-S-1222F TYPE 1,GRADE B7 MIL SPEC SINGLE MATERIAL RESPONSE |
| Material | STEEL |
| 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 |
|---|---|
| 4457023 PIECE 138 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 6503-86 PIECE 138 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 501-4457023 PIECE 138 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 501-4457023 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
| 6503-86 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 3040-01-203-4803 is a Shaft,shouldered, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-203-4803 has 3 manufacturer part numbers on file: 4457023 PIECE 138 (Huntington Ingalls Inc Div Newport News Shipbuilding), 6503-86 PIECE 138 (Huntington Ingalls Inc Div Newport News Shipbuilding), 501-4457023 PIECE 138 (Huntington Ingalls Inc Div Newport News Shipbuilding).
Key specifications for 4457023 PIECE 138: Material Document and Classification: MIL-S-1222F TYPE 1,GRADE B7 MIL SPEC SINGLE MATERIAL RESPONSE; Material: STEEL. 2 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.