The Shaft,shouldered, cataloged under National Stock Number 3040-01-370-6067, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Buffaloes Fire Pump Inc. Dba R B Pump Co. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-370-6067 |
| Primary Part Number | D-4028-6-1668 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Buffaloes Fire Pump Inc. Dba R B Pump Co |
| Status | ACTIVE |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE |
| Material | COPPER 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 |
|---|---|
| D-4028 PIECE 6 | Buffaloes Fire Pump Inc. Dba R B Pump Co (USA) |
| D-4028-6-1668 PRIMARY | Buffaloes Fire Pump Inc. Dba R B Pump Co (USA) |
| Reference | Meaning |
|---|---|
| D-4028-1-RB-6-1668 | 5/9 Secondary reference Buffaloes Fire Pump Inc. Dba R B Pump Co |
| D-4028 | D/9 Drawing number reference only Buffaloes Fire Pump Inc. Dba R B Pump Co |
| D-4028-RB-6 | 5/9 Secondary reference Buffaloes Fire Pump Inc. Dba R B Pump Co |
NSN 3040-01-370-6067 is a Shaft,shouldered, manufactured by Buffaloes Fire Pump Inc. Dba R B Pump Co, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-370-6067 has 2 manufacturer part numbers on file: D-4028 PIECE 6 (Buffaloes Fire Pump Inc. Dba R B Pump Co), D-4028-6-1668 (Buffaloes Fire Pump Inc. Dba R B Pump Co).
3 possible matches (shared part number, not a government interchangeability claim): 4320-01-370-6069, 4320-01-370-6134, 3040-01-373-5698. Verify interchangeability with system specifications before substitution.
Key specifications for D-4028-6-1668: Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE; Material: COPPER 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.