The Dehydrator Unit,nonreactivating, cataloged under National Stock Number 4440-00-474-5131, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4440-00-474-5131 |
| Primary Part Number | 301542 |
| Item Name | Dehydrator Unit,nonreactivating |
| FSC / FSG | 4440 / 44 — Driers, Dehydrators, and Anhydrators |
| Manufacturer | Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. |
| Status | ACTIVE |
| Accessory Components and Quantity | 1 DEHYDRATOR AND ACCESSORIES;1 ELBOWS;1 GASKET;1 OUTLET BLOCK;SCREWS;WASHERS |
| 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 |
|---|---|
| 301542 PRIMARY | Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 301542 | 5/9 Secondary reference Howden Fluid Systems |
NSN 4440-00-474-5131 is a Dehydrator Unit,nonreactivating, manufactured by Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc., classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
NSN 4440-00-474-5131 has 1 manufacturer part number on file: 301542 (Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.).
4 possible matches (shared part number, not a government interchangeability claim): 5331-01-502-3298, 5331-01-512-7830, 7025-01-609-6774. Verify interchangeability with system specifications before substitution.
Key specifications for 301542: Accessory Components and Quantity: 1 DEHYDRATOR AND ACCESSORIES;1 ELBOWS;1 GASKET;1 OUTLET BLOCK;SCREWS;WASHERS. 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.