The Head,linear Actuating Cylinder, cataloged under National Stock Number 3040-01-322-7672, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Vangard Intl. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-322-7672 |
| Primary Part Number | 845-4457741 ITEM-4 |
| Item Name | Head,linear Actuating Cylinder |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Vangard Intl |
| Status | ACTIVE |
| 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 |
|---|---|
| 2300-578 ITEM-4 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 2300-579 ITEM-4 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 845-4457741 ITEM-4 PRIMARY | Vangard Intl (USA) |
| Reference | Meaning |
|---|---|
| 4457741 | D/9 Drawing number reference only U.S. Government activity |
| 4457742 ITEM-4 | 5/2 Secondary reference U.S. Government activity |
| 845-4457741 ITEM-4 | 5/2 Secondary reference U.S. Government activity |
| 4457742 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-01-322-7672 is a Head,linear Actuating Cylinder, manufactured by Vangard Intl, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-322-7672 has 3 manufacturer part numbers on file: 2300-578 ITEM-4 (Huntington Ingalls Inc Div Newport News Shipbuilding), 2300-579 ITEM-4 (Huntington Ingalls Inc Div Newport News Shipbuilding), 845-4457741 ITEM-4 (Vangard Intl).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-322-7673, 4730-01-323-8621. Verify interchangeability with system specifications before substitution.
Key specifications for 845-4457741 ITEM-4: Overall Length: 8.000 INCHES MAXIMUM IN; Material: COPPER ALLOY. 1 specification is 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.