The Separator,air and W, cataloged under National Stock Number 4440-01-225-5593, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Separator,air and W
FSC / FSG
4440 — Driers, Dehydrators, and Anhydrators (FSG 44)
Technical Specifications
Parameter
Value
NSN
4440-01-225-5593
Item Name
Separator,air and W
FSC / FSG
4440 / 44 — Driers, Dehydrators, and Anhydrators
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
9340-01-290-93572-12-17POSSIBLE MATCH
TUBING,GLASS
Possible match (shared part number)Fulton Boiler Works Inc
4810-01-418-951921217-001POSSIBLE MATCH
VALVE,LINEAR,DIRECTIONAL CONTROL
Possible match (shared part number)Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
3040-01-419-052221217-1001-1POSSIBLE MATCH
SHAFT,SHOULDERED
Possible match (shared part number)Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
21217
C/1Advisory reference — outside the item-of-supply concept
Haywardindl. Products, Inc.
21217
3/9Design control — primary reference
Wright Austin Co
Related Parts
9340-01-290-9357POSSIBLE MATCH
TUBING,GLASS
2-12-17
4810-01-418-9519POSSIBLE MATCH
VALVE,LINEAR,DIRECTIONAL CONTROL
21217-001
3040-01-419-0522POSSIBLE MATCH
SHAFT,SHOULDERED
21217-1001-1
Frequently Asked Questions
What is NSN 4440-01-225-5593?
NSN 4440-01-225-5593 is a Separator,air and W, classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
What NSN replaces 4440-01-225-5593?
3 possible matches (shared part number, not a government interchangeability claim): 9340-01-290-9357, 4810-01-418-9519, 3040-01-419-0522. Verify interchangeability with system specifications before substitution.
Is NSN 4440-01-225-5593 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.