NSN 3040-01-440-5669 · NIIN 014405669 · Part number DC-2
Des Case Corp · FSC 3040 — Miscellaneous Power Transmission Equipment · FSG 30 — Mechanical Power Transmission Equipment · CAGE 043E5
Government record, cited
NSN 3040-01-440-5669 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-440-5669. Manufacturer of record part number: DC-2.
Also searched as3040-01-440-5669 ·
3040014405669 ·
NIIN 014405669 ·
01-440-5669 ·
FSC 3040 Miscellaneous Power Transmission Equipment · CAGE 043E5 · DC-2 · 738042 · 92239641
FSC: 3040 — Miscellaneous Power Transmission Equipment
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: DC-2
Manufacturer: Des Case Corp
General Description
The Breather, cataloged under National Stock Number 3040-01-440-5669, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Des Case Corp. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3040-01-440-5669
Primary Part Number
DC-2
Item Name
Breather
FSC / FSG
3040 / 30 — Miscellaneous Power Transmission Equipment
Manufacturer
Des Case Corp
Status
ACTIVE
Outside Diameter
4.000 INCHES NOMINAL IN
Body Material
PLASTIC
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Hazardous per DLA record (HMIC Y)
Criticality Code
X
⇄Related Items3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4310-01-529-7714DC-2POSSIBLE MATCH
BREATHER
Possible match (shared part number)Flow Ezy Filters Inc
3040-01-573-3976N260H001-IT9APOSSIBLE MATCH
BREATHER
Possible match (shared part number)J & R Engineering Company Inc.
6515-01-641-9275DC-2POSSIBLE MATCH
CLAMP,GENERAL SURGERY
Possible match (shared part number)Specialty Surgical Instrumentation, Inc. Dba Symmetry Surgical Inc Div Symmetry Surgical
NSN 3040-01-440-5669 is a Breather, manufactured by Des Case Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
What part numbers are listed for NSN 3040-01-440-5669?
NSN 3040-01-440-5669 has 2 manufacturer part numbers on file: DC-2 (Des Case Corp), 92239641 (Thales Sa).
What NSN replaces 3040-01-440-5669?
3 possible matches (shared part number, not a government interchangeability claim): 4310-01-529-7714, 3040-01-573-3976, 6515-01-641-9275. Verify interchangeability with system specifications before substitution.
What are the specifications of DC-2?
Key specifications for DC-2: Outside Diameter: 4.000 INCHES NOMINAL IN; Overall Length: 5.250 INCHES NOMINAL IN; Body Material: PLASTIC; Special Features: INCLUDES HYGROSCOPIC AGENT;REPLACEABLE;SPL MARKINGS:ACTIVE;REPLACE. 2 specifications are documented in the U.S. Government catalog.
Is NSN 3040-01-440-5669 hazardous material?
Hazardous per DLA record (HMIC Y). 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.