NSN 4820-01-458-0235 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-458-0235. Manufacturer of record part number: 40398-406.
Manufacturer of record: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Identification
NSN: 4820-01-458-0235
NIIN: 014580235
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 40398-406
Manufacturer: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
General Description
The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-458-0235, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-458-0235
Primary Part Number
40398-406
Item Name
Valve,regulating,fluid Pressure
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-481-258740398-407POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
Possible match (shared part number)Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4810-01-682-525940398-411POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
Possible match (shared part number)Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4810-01-683-870340398-410POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
Possible match (shared part number)Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-687-766540398-409POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
Possible match (shared part number)Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Reference documents
Reference
Meaning
40398-4
5/9Secondary reference
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Related Parts
4820-01-481-2587POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
40398-407
4810-01-682-5259POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
40398-411
4810-01-683-8703POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
40398-410
4820-01-687-7665POSSIBLE MATCH
VALVE,REGULATING,FLUID PRESSURE
40398-409
Frequently Asked Questions
What is NSN 4820-01-458-0235?
NSN 4820-01-458-0235 is a Valve,regulating,fluid Pressure, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-458-0235?
NSN 4820-01-458-0235 has 1 manufacturer part number on file: 40398-406 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
What NSN replaces 4820-01-458-0235?
4 possible matches (shared part number, not a government interchangeability claim): 4820-01-481-2587, 4810-01-682-5259, 4810-01-683-8703. Verify interchangeability with system specifications before substitution.
What are the specifications of 40398-406?
Key specifications for 40398-406: End Item Identification: E/I VALVE PRESSURE CAGE 55378 ARLEIGH BURKE CLASS DDG. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-458-0235 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.