The Cover,breather Comp, cataloged under National Stock Number 3950-00-235-4221, is classified within Federal Supply Class 3950 (Winches, Hoists, Cranes, and Derricks) of the Materials Handling Equipment group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Catalog Facts
Item Name
Cover,breather Comp
FSC / FSG
3950 — Winches, Hoists, Cranes, and Derricks (FSG 39)
Technical Specifications
Parameter
Value
NSN
3950-00-235-4221
Item Name
Cover,breather Comp
FSC / FSG
3950 / 39 — Winches, Hoists, Cranes, and Derricks
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
4007D585
3/9Design control — primary reference
Goodrich Corporation Dba Trw Lucas Aerospace
4007D585
5/9Secondary reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 3950 — Winches, Hoists, Cranes, and Derricks
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3950-00-001-1249
LINING,FRICTION
3950-00-001-3984
3950-00-001-3984 · Item name not on file
3950-00-001-6303
3950-00-001-6303 · Item name not on file
3950-00-001-6304
3950-00-001-6304 · Item name not on file
3950-00-001-6312
3950-00-001-6312 · Item name not on file
3950-00-001-6313
HOIST,TRUCK
3950-00-001-7831
3950-00-001-7831 · Item name not on file
3950-00-001-7834
COOLING COIL,WINCH
Frequently Asked Questions
What is NSN 3950-00-235-4221?
NSN 3950-00-235-4221 is a Cover,breather Comp, classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.
Is NSN 3950-00-235-4221 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.