NSN 4820-00-398-9440 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-398-9440. Manufacturer of record part number: SF-10.
The Disk,valve, cataloged under National Stock Number 4820-00-398-9440, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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.
Technical Specifications
Parameter
Value
NSN
4820-00-398-9440
Primary Part Number
SF-10
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Circor Naval Solutions Llc Dba Warren Pumps
Status
ACTIVE
Material
COPPER ALLOY
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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3130-00-797-666213213E4369POSSIBLE MATCH
BEARING UNIT,BALL
Possible match (shared part number)Cecom Lr Center
3455-00-971-890817614POSSIBLE MATCH
CUTTER,MILLING,END
Possible match (shared part number)New York Twist Drill Inc
5915-01-306-4466SF10POSSIBLE MATCH
FILTER,RADIO FREQUENCY INTERFERE
Possible match (shared part number)Filter Concepts Incorporated Dba Audio Power Industries
6680-01-518-5215SF10POSSIBLE MATCH
INDICATOR-TRANSMITTER,RATE OF FL
Possible match (shared part number)Dwyer Instruments Inc
NSN 4820-00-398-9440 is a Disk,valve, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-00-398-9440?
NSN 4820-00-398-9440 has 1 manufacturer part number on file: SF-10 (Circor Naval Solutions Llc Dba Warren Pumps).
What NSN replaces 4820-00-398-9440?
4 possible matches (shared part number, not a government interchangeability claim): 3130-00-797-6662, 3455-00-971-8908, 5915-01-306-4466. Verify interchangeability with system specifications before substitution.
What are the specifications of SF-10?
Key specifications for SF-10: Material: COPPER ALLOY. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-00-398-9440 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.