NSN 4820-01-453-4130 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-453-4130. Manufacturer of record part number: 21030537.
Manufacturer of record: Mcnaughton Dynamics Limited
Identification
NSN: 4820-01-453-4130
NIIN: 014534130
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 21030537
Manufacturer: Mcnaughton Dynamics Limited
General Description
The Stem,needle Valve, cataloged under National Stock Number 4820-01-453-4130, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mcnaughton Dynamics Limited. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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.
Technical Specifications
Parameter
Value
NSN
4820-01-453-4130
Primary Part Number
21030537
Item Name
Stem,needle Valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Mcnaughton Dynamics Limited
Status
ACTIVE
Material
STEEL COMP 303
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.
4820-01-467-2760GD721B443GPOSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
Possible match (shared part number)Circor Aerospace, Inc. Dba Circor Aerospace Inc
4820-01-467-2941R2203-0223POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Circor Aerospace, Inc. Dba Circor Aerospace Inc
4820-01-467-2943K2203-0238POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Circor Aerospace, Inc. Dba Circor Aerospace Inc
4820-01-467-2946B2202-0023POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Circor Aerospace, Inc. Dba Circor Aerospace Inc
4820-01-467-2951M2205-0013POSSIBLE MATCH
DIAPHRAGM,VALVE,FLAT
Possible match (shared part number)Circor Aerospace, Inc. Dba Circor Aerospace Inc
4330-01-467-43362322-0028POSSIBLE MATCH
FILTERING DISK,FLUID
Possible match (shared part number)Circor Aerospace, Inc. Dba Circor Aerospace Inc
NSN 4820-01-453-4130 is a Stem,needle Valve, manufactured by Mcnaughton Dynamics Limited, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-453-4130?
NSN 4820-01-453-4130 has 1 manufacturer part number on file: 21030537 (Mcnaughton Dynamics Limited).
What NSN replaces 4820-01-453-4130?
6 possible matches (shared part number, not a government interchangeability claim): 4820-01-467-2760, 4820-01-467-2941, 4820-01-467-2943. Verify interchangeability with system specifications before substitution.
What are the specifications of 21030537?
Key specifications for 21030537: Special Features: NHA VALVE,PRESSURE REGULATOR; End Item Identification: OXYGEN SERVICING UNIT; W/S CODE JA, NIMITZ CLASS CVN; Material: STEEL COMP 303. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-453-4130 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.