The Valve,priority,hydr, cataloged under National Stock Number 4820-00-481-9730, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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
Valve,priority,hydr
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Technical Specifications
Parameter
Value
NSN
4820-00-481-9730
Item Name
Valve,priority,hydr
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)
Criticality Code
V
⇄Related Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6515-01-249-275550-4579POSSIBLE MATCH
RATCHET MECHANISM,STANDARD
Possible match (shared part number)Codman & Shurtleff Inc
6645-01-326-0700POSSIBLE MATCH
TIMER,MANUAL
Possible match (shared part number)
5310-01-418-7160N72025POSSIBLE MATCH
NUT,PLAIN,HEXAGON
Possible match (shared part number)Leslie Controls, Inc. Dba Leslie Controls Inc
5945-01-594-224772025POSSIBLE MATCH
SOLENOID,ELECTRICAL
Possible match (shared part number)Applied Companies
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
NSN 4820-00-481-9730 is a Valve,priority,hydr, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-00-481-9730?
4 possible matches (shared part number, not a government interchangeability claim): 6515-01-249-2755, 6645-01-326-0700, 5310-01-418-7160. Verify interchangeability with system specifications before substitution.
Is NSN 4820-00-481-9730 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.