The Housing,seal,valve, cataloged under National Stock Number 4820-01-108-6066, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government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
Housing,seal,valve
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Technical Specifications
Parameter
Value
NSN
4820-01-108-6066
Item Name
Housing,seal,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
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 Items10
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-109-11884678004-0004POSSIBLE MATCH
RING,SHEAR,VALVE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-115-151987684-1504 ITEM 31POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-115-34944678004 U1CPOSSIBLE MATCH
ROD,VALVE
Possible match (shared part number)Naval Ship Systems Command
4820-01-115-684487684-1504 ITEM 22POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-133-4101412-4678004 ITEM 11POSSIBLE MATCH
BAR,VALVE
Possible match (shared part number)Naval Ship Systems Command
5310-01-140-2080412-4678004 ITEM 20POSSIBLE MATCH
NUT,SEAL ADJUSTING
Possible match (shared part number)Naval Ship Systems Command
4820-01-169-9733412-4678004 ITEM 12POSSIBLE MATCH
HUB,VALVE
Possible match (shared part number)Naval Ship Systems Command
4820-01-211-5339412-4678004 ITEM 1POSSIBLE MATCH
MOUNT,VALVE
Possible match (shared part number)Naval Ship Systems Command
4820-01-249-9182POSSIBLE MATCH
BODY,VALVE
Possible match (shared part number)
4820-01-249-9925POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
412-4678004 ITEM 6
5/2Secondary reference
U.S. Government activity
412-4678004
D/9Drawing number reference only
U.S. Government activity
87684-1504 ITEM 6
3/2Design control — primary reference
U.S. Government activity
87684 PC6
5/9Secondary reference
Oceanetics Inc
Related Parts
4820-01-109-1188POSSIBLE MATCH
RING,SHEAR,VALVE
4678004-0004
4820-01-115-1519POSSIBLE MATCH
DISK,VALVE
87684-1504 ITEM 31
4820-01-115-3494POSSIBLE MATCH
ROD,VALVE
4678004 U1C
4820-01-115-6844POSSIBLE MATCH
DISK,VALVE
87684-1504 ITEM 22
4820-01-133-4101POSSIBLE MATCH
BAR,VALVE
412-4678004 ITEM 11
5310-01-140-2080POSSIBLE MATCH
NUT,SEAL ADJUSTING
412-4678004 ITEM 20
4820-01-169-9733POSSIBLE MATCH
HUB,VALVE
412-4678004 ITEM 12
4820-01-211-5339POSSIBLE MATCH
MOUNT,VALVE
412-4678004 ITEM 1
4820-01-249-9182POSSIBLE MATCH
BODY,VALVE
4820-01-249-9925POSSIBLE MATCH
STEM,FLUID VALVE
Frequently Asked Questions
What is NSN 4820-01-108-6066?
NSN 4820-01-108-6066 is a Housing,seal,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-108-6066?
10 possible matches (shared part number, not a government interchangeability claim): 4820-01-109-1188, 4820-01-115-1519, 4820-01-115-3494. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-108-6066 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.