The Crank,actuator,hydraulic, cataloged under National Stock Number 5342-00-421-4524, is classified within Federal Supply Class 5342 (Hardware, Weapon System) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5342-00-421-4524 |
| Primary Part Number | 1128HM40103-12 |
| Item Name | Crank,actuator,hydraulic |
| FSC / FSG | 5342 / 53 — Hardware, Weapon System |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | AL ALLOY; HEX HOLE 0.499 IN. IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1128HM40103-12 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1128HM40103-12 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 1128HM40103 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
NSN 5342-00-421-4524 is a Crank,actuator,hydraulic, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5342, Hardware, Weapon System. Status: active.
NSN 5342-00-421-4524 has 1 manufacturer part number on file: 1128HM40103-12 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5342-00-421-4537. Verify interchangeability with system specifications before substitution.
Key specifications for 1128HM40103-12: General Characteristics Item Description: AL ALLOY; HEX HOLE 0.499 IN. IN. 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.
NSN 5342-00-421-4524 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.