PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

237-03Seat,valve

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-220-7700 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-220-7700 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-220-7700. Primary manufacturer part number: 237-03.
Features
  • Seat,valve — FSC 4820
  • Style Designator: PLAIN
  • Material: STEEL COMP 303 SEAT
  • 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 Steel Comp 303 Seat construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-220-7700, 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 2 verified specifications, 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
NSN4820-01-220-7700
Primary Part Number237-03
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Style DesignatorPLAIN
MaterialSTEEL COMP 303 SEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5950-00-146-4818 INTERCHANGEABLE
Reactor
4310-00-771-064923703 INTERCHANGEABLE
Ring,piston
Cnh Industrial America Llc Dba Cnh America
5306-00-939-9599SP-58-02 INTERCHANGEABLE
Rod,continuous Thread
American National Standards Institute Incorporated Dba American National Standards Institute
5330-01-251-078518394FX INTERCHANGEABLE
Seal,plain
Oshkosh Defense Llc
8470-01-506-6439 INTERCHANGEABLE
Helmet,advanced Combat
8470-01-506-6440 INTERCHANGEABLE
Helmet,advanced Combat
Cross-Reference Index
Part NumberManufacturer
237-03 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
5950-00-146-4818INTERCHANGEABLE
REACTOR
4310-00-771-0649INTERCHANGEABLE
RING,PISTON
23703
5306-00-939-9599INTERCHANGEABLE
ROD,CONTINUOUS THREAD
SP-58-02
5330-01-251-0785INTERCHANGEABLE
SEAL,PLAIN
18394FX
8470-01-506-6439INTERCHANGEABLE
HELMET,ADVANCED COMBAT
8470-01-506-6440INTERCHANGEABLE
HELMET,ADVANCED COMBAT

Frequently Asked Questions

What is NSN 4820-01-220-7700?

NSN 4820-01-220-7700 is a Seat,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 4820-01-220-7700?

NSN 4820-01-220-7700 has 1 cross-referenced part number: 237-03 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-220-7700?

There are 6 known substitutes for 4820-01-220-7700: 5950-00-146-4818, 4310-00-771-0649, 5306-00-939-9599 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 237-03?

Key specifications for 237-03: Style Designator: PLAIN; Material: STEEL COMP 303 SEAT. 2 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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