NSN 4440-01-590-8541 — this item is cataloged by the U.S. Government under National Stock Number 4440-01-590-8541. Manufacturer of record part number: 004-100026R00.
Also searched as4440-01-590-8541 ·
4440015908541 ·
NIIN 015908541 ·
01-590-8541 ·
FSC 4440 Driers, Dehydrators, and Anhydrators · CAGE 02FP7 · 004-100026R00 · 2189K48
Nearby stock numbers← 4440-01-590-8375 Dehydrator, Desiccant, Electric
·
4440-01-591-9173 Parts Kit, Air Drier →
The Desiccant Pack, cataloged under National Stock Number 4440-01-590-8541, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Insitu, Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Other items in FSC 4440 — Driers, Dehydrators, and Anhydrators
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4440-00-001-6294
4440-00-001-6294 · Item name not on file
4440-00-001-6296
4440-00-001-6296 · Item name not on file
4440-00-005-5084
DEHYDRATOR UNIT,NONREACTIVATING
4440-00-006-0073
CARTRIDGE,DEHYDRATOR
4440-00-007-2318
TIMER
4440-00-008-4864
SENSOR ASSEMBLY,HUM
4440-00-009-4422
4440-00-009-4422 · Item name not on file
4440-00-009-5282
4440-00-009-5282 · Item name not on file
Frequently Asked Questions
What is NSN 4440-01-590-8541?
NSN 4440-01-590-8541 is a Desiccant Pack, manufactured by Insitu, Inc., classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
What part numbers are listed for NSN 4440-01-590-8541?
NSN 4440-01-590-8541 has 2 manufacturer part numbers on file: 2189K48 (Mcmaster-Carr Supply Co), 004-100026R00 (Insitu, Inc.).
What are the specifications of 004-100026R00?
Key specifications for 004-100026R00: Part Name Assigned by Controlling Agency: DESICCANT, SILICA GEL BAG (30/PKG). 0 specifications are documented in the U.S. Government catalog.
Is NSN 4440-01-590-8541 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.