PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

243-02Seat,valve

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-231-8631 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-231-8631 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-231-8631. Primary manufacturer part number: 243-02.
Features
  • Seat,valve — FSC 4820
  • Material: COPPER ALLOY OVERALL
  • 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 Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-231-8631, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-231-8631
Primary Part Number243-02
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5330-00-091-908224302 INTERCHANGEABLE
Gasket
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5920-01-117-62562430-2 INTERCHANGEABLE
Fuseholder,block
Cooper Bussmann, Llc Dba Cooper Industries
6625-01-147-885824502 INTERCHANGEABLE
Voltmeter
Simpson Electric Company, Inc.
6515-01-180-698824302 INTERCHANGEABLE
Speculum,otoscope
Welch Allyn, Inc.
5930-01-292-704424302 INTERCHANGEABLE
Switch,pressure
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
5340-01-468-194224-302 INTERCHANGEABLE
Turnbuckle
Johnson C Sherman Co Inc
5340-01-705-395024302 INTERCHANGEABLE
Standoff,threaded,spacing
Keystone Electronics Corp
Cross-Reference Index
Part NumberManufacturer
243-02 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
5330-00-091-9082INTERCHANGEABLE
GASKET
24302
5920-01-117-6256INTERCHANGEABLE
FUSEHOLDER,BLOCK
2430-2
6625-01-147-8858INTERCHANGEABLE
VOLTMETER
24502
6515-01-180-6988INTERCHANGEABLE
SPECULUM,OTOSCOPE
24302
5930-01-292-7044INTERCHANGEABLE
SWITCH,PRESSURE
24302
5340-01-468-1942INTERCHANGEABLE
TURNBUCKLE
24-302
5340-01-705-3950INTERCHANGEABLE
STANDOFF,THREADED,SPACING
24302

Frequently Asked Questions

What is NSN 4820-01-231-8631?

NSN 4820-01-231-8631 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 4820-01-231-8631?

NSN 4820-01-231-8631 has 1 cross-referenced part number: 243-02 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-231-8631?

There are 7 known substitutes for 4820-01-231-8631: 5330-00-091-9082, 5920-01-117-6256, 6625-01-147-8858 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 243-02?

Key specifications for 243-02: Material: COPPER ALLOY OVERALL. 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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