NSN 4820-01-349-7807 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-349-7807. Manufacturer of record part number: DF331468 FIND 8.
Manufacturer of record: Huntington Ingalls Inc Div Newport News Shipbuilding
Identification
NSN: 4820-01-349-7807
NIIN: 013497807
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: DF331468 FIND 8
Manufacturer: Huntington Ingalls Inc Div Newport News Shipbuilding
General Description
The Seat,valve, cataloged under National Stock Number 4820-01-349-7807, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 11 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-349-7807
Primary Part Number
DF331468 FIND 8
Item Name
Seat,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Huntington Ingalls Inc Div Newport News Shipbuilding
Status
ACTIVE
Body Outside Diameter
2.463 INCHES NOMINAL IN
Body Inside Diameter
1.560 INCHES NOMINAL IN
Seat Radius
0.246 INCHES NOMINAL IN
Material
PLASTIC ACETAL OVERALL
Seating Surface Shape
RADIAL
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 Items11
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-349-7909211055653POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Naval Sea Systems Command
3040-01-351-3095DF330644 FIND 112POSSIBLE MATCH
CAM,CONTROL
Possible match (shared part number)Huntington Ingalls Inc Div Newport News Shipbuilding
4820-01-352-9048801-6408784-88POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-353-7606211076430POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-356-3125211055778POSSIBLE MATCH
STOP,MANUAL CONTROL LEVER
Possible match (shared part number)Naval Sea Systems Command
4820-01-358-8889211055645POSSIBLE MATCH
PLATE,RETAINER,VALVE STOP
Possible match (shared part number)Naval Sea Systems Command
4820-01-358-8890211055781POSSIBLE MATCH
STOP,MANUAL CONTROL LEVER
Possible match (shared part number)Naval Sea Systems Command
4820-01-415-0048211075544POSSIBLE MATCH
STOP,VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-435-4154POSSIBLE MATCH
VALVE,BALL
Possible match (shared part number)
3120-01-502-1052801-6408784-86POSSIBLE MATCH
BEARING,WASHER,THRUST
Possible match (shared part number)Naval Sea Systems Command
NSN 4820-01-349-7807 is a Seat,valve, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-349-7807?
NSN 4820-01-349-7807 has 3 manufacturer part numbers on file: DF331468 FIND 8 (Huntington Ingalls Inc Div Newport News Shipbuilding), 6408784 PC 8 (Derbyshire Machine & Tool Co), 801-6408784-8 (Naval Sea Systems Command).
What NSN replaces 4820-01-349-7807?
11 possible matches (shared part number, not a government interchangeability claim): 4820-01-349-7909, 3040-01-351-3095, 4820-01-352-9048. Verify interchangeability with system specifications before substitution.
What are the specifications of DF331468 FIND 8?
Key specifications for DF331468 FIND 8: Overall Height: 0.312 INCHES NOMINAL IN; Body Outside Diameter: 2.463 INCHES NOMINAL IN; Body Inside Diameter: 1.560 INCHES NOMINAL IN; Seat Radius: 0.246 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-349-7807 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.