NSN 4820-01-437-8877 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-437-8877. Manufacturer of record part number: 2350-823 ASSY 95.
Manufacturer of record: Huntington Ingalls Inc Div Newport News Shipbuilding
Identification
NSN: 4820-01-437-8877
NIIN: 014378877
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 2350-823 ASSY 95
Manufacturer: Huntington Ingalls Inc Div Newport News Shipbuilding
General Description
The Valve Assembly,manifold, cataloged under National Stock Number 4820-01-437-8877, 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 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-437-8877
Primary Part Number
2350-823 ASSY 95
Item Name
Valve Assembly,manifold
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Huntington Ingalls Inc Div Newport News Shipbuilding
Status
ACTIVE
Valve Quantity
4
Body Material
NICKEL 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 Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-439-3487509-4325672 ASSY 96POSSIBLE MATCH
VALVE ASSEMBLY,MANIFOLD
Possible match (shared part number)Naval Ship Systems Command
4820-01-532-4698509-4325672 ASSY97POSSIBLE MATCH
VALVE ASSEMBLY,MANIFOLD
Possible match (shared part number)Naval Ship Systems Command
4820-01-535-2388509-4325672(ASSY98)POSSIBLE MATCH
VALVE ASSEMBLY,MANIFOLD
Possible match (shared part number)Naval Ship Systems Command
4820-01-538-0250509-4325672PC5POSSIBLE MATCH
FLANGE,GLAND,VALVE
Possible match (shared part number)Naval Ship Systems Command
4820-01-538-0254509-4325672PC8POSSIBLE MATCH
RETAINER,DISK,VALVE
Possible match (shared part number)Naval Ship Systems Command
Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
Reference documents
Reference
Meaning
4325672
D/9Drawing number reference only
Huntington Ingalls Inc Div Newport News Shipbuilding
509-4325672 ASSY 95
3/2Design control — primary reference
U.S. Government activity
Related Parts
4820-01-439-3487POSSIBLE MATCH
VALVE ASSEMBLY,MANIFOLD
509-4325672 ASSY 96
4820-01-532-4698POSSIBLE MATCH
VALVE ASSEMBLY,MANIFOLD
509-4325672 ASSY97
4820-01-535-2388POSSIBLE MATCH
VALVE ASSEMBLY,MANIFOLD
509-4325672(ASSY98)
4820-01-538-0250POSSIBLE MATCH
FLANGE,GLAND,VALVE
509-4325672PC5
4820-01-538-0254POSSIBLE MATCH
RETAINER,DISK,VALVE
509-4325672PC8
Frequently Asked Questions
What is NSN 4820-01-437-8877?
NSN 4820-01-437-8877 is a Valve Assembly,manifold, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-437-8877?
NSN 4820-01-437-8877 has 1 manufacturer part number on file: 2350-823 ASSY 95 (Huntington Ingalls Inc Div Newport News Shipbuilding).
What NSN replaces 4820-01-437-8877?
5 possible matches (shared part number, not a government interchangeability claim): 4820-01-439-3487, 4820-01-532-4698, 4820-01-535-2388. Verify interchangeability with system specifications before substitution.
What are the specifications of 2350-823 ASSY 95?
Key specifications for 2350-823 ASSY 95: Valve Quantity: 4; Body Material: NICKEL ALLOY; Special Features: USED ON A POTABLE WATER SYSTEM; End Item Identification: NIMITZ CLASS CVN. 2 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-437-8877 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.