The Housing,labyrinth Seal, cataloged under National Stock Number 2825-01-173-9457, is classified within Federal Supply Class 2825 (Steam Turbines and Components) of the Engines, Turbines, and Components group. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Catalog Facts
Item Name
Housing,labyrinth Seal
FSC / FSG
2825 — Steam Turbines and Components (FSG 28)
Technical Specifications
Parameter
Value
NSN
2825-01-173-9457
Item Name
Housing,labyrinth Seal
FSC / FSG
2825 / 28 — Steam Turbines and 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)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
1665C77PCS1-10
C/1Advisory reference — outside the item-of-supply concept
U.S. Government activity
640D346 PIECE 2
5/2Secondary reference
U.S. Government activity
665C77PCS1-10
C/1Advisory reference — outside the item-of-supply concept
U.S. Government activity
490C322 PIECE 4
5/2Secondary reference
U.S. Government activity
1665C77-01-10
3/2Design control — primary reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 2825 — Steam Turbines and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2825-00-001-8040
2825-00-001-8040 · Item name not on file
2825-00-001-8041
GUIDE,SPINDLE
2825-00-001-8042
2825-00-001-8042 · Item name not on file
2825-00-001-8043
2825-00-001-8043 · Item name not on file
2825-00-001-8044
2825-00-001-8044 · Item name not on file
2825-00-003-0377
2825-00-003-0377 · Item name not on file
2825-00-003-8649
2825-00-003-8649 · Item name not on file
2825-00-004-9102
2825-00-004-9102 · Item name not on file
Frequently Asked Questions
What is NSN 2825-01-173-9457?
NSN 2825-01-173-9457 is a Housing,labyrinth Seal, classified under FSC 2825, Steam Turbines and Components. Status: active.
Is NSN 2825-01-173-9457 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.