PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

235-03Disk,valve

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-239-0528 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-239-0528 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-239-0528. Primary manufacturer part number: 235-03.
Features
  • Disk,valve — FSC 4820
  • Material: COPPER ALLOY
  • 1 verified cross-reference
  • Primary manufacturer: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-239-0528, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-239-0528
Primary Part Number235-03
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
MaterialCOPPER ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5340-00-264-7184868 INTERCHANGEABLE
Bumper
Atlantic India Rubber Co Inc
5920-00-296-1519115-0008 INTERCHANGEABLE
Fuse,cartridge
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
5950-00-648-5406G23503REVB INTERCHANGEABLE
Transformer,power
L3harris Technologies, Inc Div Space & Airborne Systems
5330-01-061-3275 INTERCHANGEABLE
Gasket
4140-01-366-513223503 INTERCHANGEABLE
Impeller,fan,axial
Tld Ace Corp Div Tld Ace
8415-01-406-69092-3-503 INTERCHANGEABLE
Bag,flyer's Helmet
W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center
Cross-Reference Index
Part NumberManufacturer
235-03 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
5340-00-264-7184INTERCHANGEABLE
BUMPER
868
5920-00-296-1519INTERCHANGEABLE
FUSE,CARTRIDGE
115-0008
5950-00-648-5406INTERCHANGEABLE
TRANSFORMER,POWER
G23503REVB
5330-01-061-3275INTERCHANGEABLE
GASKET
4140-01-366-5132INTERCHANGEABLE
IMPELLER,FAN,AXIAL
23503
8415-01-406-6909INTERCHANGEABLE
BAG,FLYER'S HELMET
2-3-503

Frequently Asked Questions

What is NSN 4820-01-239-0528?

NSN 4820-01-239-0528 is a Disk,valve, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-239-0528?

NSN 4820-01-239-0528 has 1 cross-referenced part number: 235-03 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-239-0528?

There are 6 known substitutes for 4820-01-239-0528: 5340-00-264-7184, 5920-00-296-1519, 5950-00-648-5406 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 235-03?

Key specifications for 235-03: Material: COPPER ALLOY. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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