The Shaft,shouldered, cataloged under National Stock Number 3040-01-455-9891, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-455-9891 |
| Primary Part Number | 1876-01 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 1876-01 PRIMARY | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| Reference | Meaning |
|---|---|
| P2667B-03 | 5/9 Secondary reference Atlas Valve Co |
| NAP 929 | D/9 Drawing number reference only Atlas Valve Co |
| NAP 929 ITEM 13 | 5/9 Secondary reference Atlas Valve Co |
| P2667B-01 | C/1 Advisory reference — outside the item-of-supply concept Atlas Valve Co |
| P2667B-02 | C/1 Advisory reference — outside the item-of-supply concept Atlas Valve Co |
NSN 3040-01-455-9891 is a Shaft,shouldered, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-455-9891 has 1 manufacturer part number on file: 1876-01 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 6665-01-651-5160. Verify interchangeability with system specifications before substitution.
Key specifications for 1876-01: End Item Identification: VALVE PRESSURE,NIMITZ CLASS CVN. 0 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.