NSN 4820-01-247-7845 · NIIN 012477845 · Part number 8343 ITEM 2
William E Williams Valve Corp · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 79342
Government record, cited
NSN 4820-01-247-7845 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-247-7845. Manufacturer of record part number: 8343 ITEM 2.
Manufacturer of record: William E Williams Valve Corp
Identification
NSN: 4820-01-247-7845
NIIN: 012477845
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 8343 ITEM 2
Manufacturer: William E Williams Valve Corp
General Description
The Disk,valve, cataloged under National Stock Number 4820-01-247-7845, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is William E Williams Valve Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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.
Catalog Facts
Item Name
Disk,valve
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
William E Williams Valve Corp (CAGE 79342)
Technical Specifications
Parameter
Value
NSN
4820-01-247-7845
Primary Part Number
8343 ITEM 2
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
William E Williams Valve Corp
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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
2590-01-278-2628POSSIBLE MATCH
VALVE,ASSY,PROPORTI
Possible match (shared part number)
3460-01-279-8861POSSIBLE MATCH
BAR,BORING TOOL
Possible match (shared part number)
5330-01-578-2220SF15-141N493-4POSSIBLE MATCH
SEAL,NONMETALLIC SPECIAL SHAPED
Possible match (shared part number)Kirkhill, Inc. Dba Ta Aerospace Co Div Kirkhill Inc, Sfs Division
5930-01-615-871783432POSSIBLE MATCH
SWITCH,PUSH
Possible match (shared part number)Miller Electric Mfg. Llc
C/1Advisory reference — outside the item-of-supply concept
William E Williams Valve Corp
Related Parts
2590-01-278-2628POSSIBLE MATCH
VALVE,ASSY,PROPORTI
3460-01-279-8861POSSIBLE MATCH
BAR,BORING TOOL
5330-01-578-2220POSSIBLE MATCH
SEAL,NONMETALLIC SPECIAL SHAPED
SF15-141N493-4
5930-01-615-8717POSSIBLE MATCH
SWITCH,PUSH
83432
Frequently Asked Questions
What is NSN 4820-01-247-7845?
NSN 4820-01-247-7845 is a Disk,valve, manufactured by William E Williams Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-247-7845?
NSN 4820-01-247-7845 has 1 manufacturer part number on file: 8343 ITEM 2 (William E Williams Valve Corp).
What NSN replaces 4820-01-247-7845?
4 possible matches (shared part number, not a government interchangeability claim): 2590-01-278-2628, 3460-01-279-8861, 5330-01-578-2220. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-247-7845 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.