The Shaft,shouldered, cataloged under National Stock Number 3040-01-251-1709, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 2 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-251-1709 |
| Primary Part Number | 656D0508J039A |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Circor Naval Solutions Llc Dba Warren Pumps |
| Status | ACTIVE |
| Material Document and Classification | QQ-N-281,CLASS A,HOT ROLLED FED SPEC SINGLE MATERIAL RESPONSE |
| Material | NICKEL ALLOY |
| 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 |
|---|---|
| 656D0508J039A PRIMARY | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
| Reference | Meaning |
|---|---|
| 656D0508 | 5/9 Secondary reference Circor Naval Solutions Llc Dba Warren Pumps |
| PL999F0744 PC15 | 5/9 Secondary reference Circor Naval Solutions Llc Dba Warren Pumps |
| 656D0508J039A | C/1 Advisory reference — outside the item-of-supply concept Tyler Industries Inc |
| 999F0744 | D/9 Drawing number reference only Circor Naval Solutions Llc Dba Warren Pumps |
| 999F0744 PIECE 15 | 5/9 Secondary reference Circor Naval Solutions Llc Dba Warren Pumps |
NSN 3040-01-251-1709 is a Shaft,shouldered, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-251-1709 has 1 manufacturer part number on file: 656D0508J039A (Circor Naval Solutions Llc Dba Warren Pumps).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-253-7356. Verify interchangeability with system specifications before substitution.
Key specifications for 656D0508J039A: Material Document and Classification: QQ-N-281,CLASS A,HOT ROLLED FED SPEC SINGLE MATERIAL RESPONSE; Material: NICKEL ALLOY. 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.