The Shaft Assembly,straight, cataloged under National Stock Number 3040-01-641-8978, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-641-8978 |
| Primary Part Number | 167-8204845 PC 26 |
| Item Name | Shaft Assembly,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Component Quantity | 4 |
| Supply Items and Quantities | SHAFT ARM-1, COLLAR-2, SHAFT-1,AND SHAFT PAD-1 |
| 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 |
|---|---|
| 167-8200542 ASSY 82 | Naval Sea Systems Command (USA) |
| 167-8204845 PC 26 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 167-8204845 | D/9 Drawing number reference only Naval Sea Systems Command |
| 167-8200542 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-641-8978 is a Shaft Assembly,straight, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-641-8978 has 2 manufacturer part numbers on file: 167-8200542 ASSY 82 (Naval Sea Systems Command), 167-8204845 PC 26 (Naval Sea Systems Command).
7 possible matches (shared part number, not a government interchangeability claim): 5340-01-641-8979, 5340-01-642-0791, 2040-01-642-2625. Verify interchangeability with system specifications before substitution.
Key specifications for 167-8204845 PC 26: Component Quantity: 4; Supply Items and Quantities: SHAFT ARM-1, COLLAR-2, SHAFT-1,AND SHAFT PAD-1; Part Name Assigned by Controlling Agency: ASSY, SHAFT, SPRING ARM, LEFT HAND; End Item Identification: HATCH, BALLISTIC. 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.