NSN 4820-01-153-1438 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-153-1438. Manufacturer of record part number: 206944 PIECE 47.
Manufacturer of record: Huntington Ingalls Inc Div Newport News Shipbuilding
Identification
NSN: 4820-01-153-1438
NIIN: 011531438
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 206944 PIECE 47
Manufacturer: Huntington Ingalls Inc Div Newport News Shipbuilding
General Description
The Seat,valve, cataloged under National Stock Number 4820-01-153-1438, 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. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
Seat,valve
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Huntington Ingalls Inc Div Newport News Shipbuilding (CAGE 43689)
Technical Specifications
Parameter
Value
NSN
4820-01-153-1438
Primary Part Number
206944 PIECE 47
Item Name
Seat,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Huntington Ingalls Inc Div Newport News Shipbuilding
Status
ACTIVE
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 Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-153-1543206944 PIECE 12POSSIBLE MATCH
GUIDE,DISK VALVE
Possible match (shared part number)Huntington Ingalls Inc Div Newport News Shipbuilding
4820-01-153-1544206944 ASSY 99POSSIBLE MATCH
VALVE,GLOBE
Possible match (shared part number)Derbyshire Machine & Tool Co
4820-01-153-1629206944 PIECE 6POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Huntington Ingalls Inc Div Newport News Shipbuilding
4820-01-154-3736206944 PIECE 8POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Huntington Ingalls Inc Div Newport News Shipbuilding
4820-01-159-9790206944-07POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Hunt Valve Company, Inc.
Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
Reference documents
Reference
Meaning
206944
D/9Drawing number reference only
Huntington Ingalls Inc Div Newport News Shipbuilding
Related Parts
4820-01-153-1543POSSIBLE MATCH
GUIDE,DISK VALVE
206944 PIECE 12
4820-01-153-1544POSSIBLE MATCH
VALVE,GLOBE
206944 ASSY 99
4820-01-153-1629POSSIBLE MATCH
DISK,VALVE
206944 PIECE 6
4820-01-154-3736POSSIBLE MATCH
STEM,FLUID VALVE
206944 PIECE 8
4820-01-159-9790POSSIBLE MATCH
STEM,FLUID VALVE
206944-07
4820-01-160-8351POSSIBLE MATCH
DISK,VALVE
Frequently Asked Questions
What is NSN 4820-01-153-1438?
NSN 4820-01-153-1438 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 4820-01-153-1438?
NSN 4820-01-153-1438 has 1 manufacturer part number on file: 206944 PIECE 47 (Huntington Ingalls Inc Div Newport News Shipbuilding).
What NSN replaces 4820-01-153-1438?
6 possible matches (shared part number, not a government interchangeability claim): 4820-01-153-1543, 4820-01-153-1544, 4820-01-153-1629. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-153-1438 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.