NSN 4820-00-307-8102 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-307-8102. Manufacturer of record part number: 2285-299PC4.
Also searched as4820-00-307-8102 ·
4820003078102 ·
NIIN 003078102 ·
00-307-8102 ·
FSC 4820 Valves, Nonpowered · CAGE 43689 · 2285-299PC4
Body Stepped Inside Diameter: 5.055 INCHES NOMINAL SECOND STEP IN
Body Stepped Inside Diameter: 5.860 INCHES NOMINAL FIRST STEP IN
Style Designator: PLAIN
Material: PLASTIC ACETAL OVERALL
Seating Surface Shape: RADIAL
Identification
NSN: 4820-00-307-8102
NIIN: 003078102
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 2285-299PC4
Manufacturer: Huntington Ingalls Inc Div Newport News Shipbuilding
General Description
The Seat,valve, cataloged under National Stock Number 4820-00-307-8102, 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 7 specifications, 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-00-307-8102
Primary Part Number
2285-299PC4
Item Name
Seat,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Huntington Ingalls Inc Div Newport News Shipbuilding
Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
No interchangeability data on file.
Other items in FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-00-307-8102?
NSN 4820-00-307-8102 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 4820-00-307-8102?
NSN 4820-00-307-8102 has 1 manufacturer part number on file: 2285-299PC4 (Huntington Ingalls Inc Div Newport News Shipbuilding).
What are the specifications of 2285-299PC4?
Key specifications for 2285-299PC4: Overall Height: 0.628 INCHES NOMINAL IN; Body Outside Diameter: 7.000 INCHES NOMINAL IN; Seal Accommodation Type: GROOVED; Body Stepped Inside Diameter: 5.055 INCHES NOMINAL SECOND STEP IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4820-00-307-8102 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.