NSN 4440-01-675-2695 — this item is cataloged by the U.S. Government under National Stock Number 4440-01-675-2695. Manufacturer of record part number: 2139K78.
Also searched as4440-01-675-2695 ·
4440016752695 ·
NIIN 016752695 ·
01-675-2695 ·
FSC 4440 Driers, Dehydrators, and Anhydrators · CAGE 39428 · 2139K78
The Desiccant Pack, cataloged under National Stock Number 4440-01-675-2695, is classified within Federal Supply Class 4440 (Driers, Dehydrators, and Anhydrators) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Mcmaster-Carr Supply Co. 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4440-01-675-2695
Primary Part Number
2139K78
Item Name
Desiccant Pack
FSC / FSG
4440 / 44 — Driers, Dehydrators, and Anhydrators
Manufacturer
Mcmaster-Carr Supply Co
Status
ACTIVE
General Characteristics Item Description
ONE-TIME USE FOR 1,425 CUBIC INCHES; WEIGHT IS 1.16OZ OZ
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 4440-01-675-2695?
NSN 4440-01-675-2695 is a Desiccant Pack, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4440, Driers, Dehydrators, and Anhydrators. Status: active.
What part numbers are listed for NSN 4440-01-675-2695?
NSN 4440-01-675-2695 has 1 manufacturer part number on file: 2139K78 (Mcmaster-Carr Supply Co).
What are the specifications of 2139K78?
Key specifications for 2139K78: General Characteristics Item Description: ONE-TIME USE FOR 1,425 CUBIC INCHES; WEIGHT IS 1.16OZ OZ; Overall Length: 4.5 INCHES NOMINAL IN; Overall Width: 3.0 INCHES NOMINAL IN; Special Features: TYVEK BAG; BEST WHEN RELATIVE HUMIDITY IS AT LEAST 40%. 1 specification is documented in the U.S. Government catalog.
Is NSN 4440-01-675-2695 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.