FSC: 1650 — Aircraft Hydraulic, Vacuum, and De-icing System Components
FSG: 16 — Aircraft Components and Accessories
General Description
The Seal,de-Icer, cataloged under National Stock Number 1650-00-021-1250, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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.
Catalog Facts
Item Name
Seal,de-Icer
FSC / FSG
1650 — Aircraft Hydraulic, Vacuum, and De-icing System Components (FSG 16)
Technical Specifications
Parameter
Value
NSN
1650-00-021-1250
Item Name
Seal,de-Icer
FSC / FSG
1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components
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.
1650-00-102-435766910POSSIBLE MATCH
PISTON,HYDRAULIC FLUID TANK
Possible match (shared part number)Parker Hannifin Corporation Div Hydraulic Systems Division
5955-00-820-3748413510-10POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
Possible match (shared part number)Raytheon Company Dba Raytheon
7490-01-667-10601500109BUKPOSSIBLE MATCH
KEYBOARD,DATA ENTRY
Possible match (shared part number)Kensington Computer Services
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
66910
3/2Design control — primary reference
U.S. Government activity
Related Parts
1650-00-102-4357POSSIBLE MATCH
PISTON,HYDRAULIC FLUID TANK
66910
5955-00-820-3748POSSIBLE MATCH
CRYSTAL UNIT,QUARTZ
413510-10
7490-01-667-1060POSSIBLE MATCH
KEYBOARD,DATA ENTRY
1500109BUK
Frequently Asked Questions
What is NSN 1650-00-021-1250?
NSN 1650-00-021-1250 is a Seal,de-Icer, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
What NSN replaces 1650-00-021-1250?
3 possible matches (shared part number, not a government interchangeability claim): 1650-00-102-4357, 5955-00-820-3748, 7490-01-667-1060. Verify interchangeability with system specifications before substitution.
Is NSN 1650-00-021-1250 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.