The Valve,flow Control, cataloged under National Stock Number 4820-01-440-2433, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-440-2433
Item Name
Valve,flow Control
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
X
⇄Related Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-440-2441POSSIBLE MATCH
VALVE,CHECK
Possible match (shared part number)
4820-01-440-2450POSSIBLE MATCH
VALVE,FLOW CONTROL
Possible match (shared part number)
4820-01-440-2455POSSIBLE MATCH
VALVE,CHECK
Possible match (shared part number)
4820-01-440-2461POSSIBLE MATCH
VALVE,FLOW CONTROL
Possible match (shared part number)
4820-01-440-2463POSSIBLE MATCH
VALVE,FLOW CONTROL
Possible match (shared part number)
4820-01-440-2470POSSIBLE MATCH
VALVE,FLOW CONTROL
Possible match (shared part number)
4820-01-440-2475POSSIBLE MATCH
VALVE,FLOW CONTROL
Possible match (shared part number)
4820-01-440-2542POSSIBLE MATCH
VALVE,FLOW CONTROL
Possible match (shared part number)
6685-01-440-5657POSSIBLE MATCH
THERMOSTAT,FLOW CONTROL
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
518756PC4
C/1Advisory reference — outside the item-of-supply concept
Fuji Trading (america) Inc.
518756PC4
5/9Secondary reference
Kamewa
516165A
C/1Advisory reference — outside the item-of-supply concept
Fuji Trading (america) Inc.
518756
D/9Drawing number reference only
Kamewa
516165A
5/9Secondary reference
Fuji Trading America Inc
518756PC4
5/9Secondary reference
Rolls-Royce Ab
518756PC4
3/9Design control — primary reference
Fuji Trading America Inc
Related Parts
4820-01-440-2441POSSIBLE MATCH
VALVE,CHECK
4820-01-440-2450POSSIBLE MATCH
VALVE,FLOW CONTROL
4820-01-440-2455POSSIBLE MATCH
VALVE,CHECK
4820-01-440-2461POSSIBLE MATCH
VALVE,FLOW CONTROL
4820-01-440-2463POSSIBLE MATCH
VALVE,FLOW CONTROL
4820-01-440-2470POSSIBLE MATCH
VALVE,FLOW CONTROL
4820-01-440-2475POSSIBLE MATCH
VALVE,FLOW CONTROL
4820-01-440-2542POSSIBLE MATCH
VALVE,FLOW CONTROL
6685-01-440-5657POSSIBLE MATCH
THERMOSTAT,FLOW CONTROL
Frequently Asked Questions
What is NSN 4820-01-440-2433?
NSN 4820-01-440-2433 is a Valve,flow Control, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-440-2433?
9 possible matches (shared part number, not a government interchangeability claim): 4820-01-440-2441, 4820-01-440-2450, 4820-01-440-2455. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-01-440-2433?
Key specifications for 4820-01-440-2433: Special Features: UNLOADING VALVE; End Item Identification: WEAPON SYSTEM E/I STRATEGIC SEALIFT CONVERSION SHIPS CLASS. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-440-2433 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.