PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

340-00Seat,valve

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-190-5890 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-190-5890 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-190-5890. Primary manufacturer part number: 340-00.
Features
  • Seat,valve — FSC 4820
  • Material: COPPER ALLOY OVERALL
  • Body Outside Diameter: 2.500 INCHES NOMINAL IN
  • 2 verified cross-references
  • 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 4820-01-190-5890, 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 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-190-5890
Primary Part Number340-00
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
MaterialCOPPER ALLOY OVERALL
Body Outside Diameter2.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6620-00-224-1335 INTERCHANGEABLE
Gage Unit,engine
5330-00-290-0237 INTERCHANGEABLE
Packing Assembly
3456-00-496-8695 INTERCHANGEABLE
Expander,tube
5935-00-660-4296REB-49090A INTERCHANGEABLE
Connector,plug,electrical
Naval Ship Systems Command
5950-01-157-2796583R296H01 INTERCHANGEABLE
Coil,radio Frequency
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
3040-01-172-578434000 INTERCHANGEABLE
Shaft,straight
Terex Reedrill Dba Reedrill Texoma Div Terex Mining
8030-01-386-443934000 INTERCHANGEABLE
Sealing Compound
Versachem Corp
5120-01-399-9397 INTERCHANGEABLE
Punch,starter
5895-01-426-346634000 INTERCHANGEABLE
Communications Control Set
Drs Advanced Isr, Llc
5998-01-454-958634000 INTERCHANGEABLE
Circuit Card Assembly
Bay Networks Inc
Cross-Reference Index
Part NumberManufacturer
340 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
340-00 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
6620-00-224-1335INTERCHANGEABLE
GAGE UNIT,ENGINE
5330-00-290-0237INTERCHANGEABLE
PACKING ASSEMBLY
3456-00-496-8695INTERCHANGEABLE
EXPANDER,TUBE
5935-00-660-4296INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
REB-49090A
5950-01-157-2796INTERCHANGEABLE
COIL,RADIO FREQUENCY
583R296H01
3040-01-172-5784INTERCHANGEABLE
SHAFT,STRAIGHT
34000
8030-01-386-4439INTERCHANGEABLE
SEALING COMPOUND
34000
5120-01-399-9397INTERCHANGEABLE
PUNCH,STARTER
5895-01-426-3466INTERCHANGEABLE
COMMUNICATIONS CONTROL SET
34000
5998-01-454-9586INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
34000
5998-01-457-7660INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
34000
6210-01-670-5388INTERCHANGEABLE
LIGHT,INDICATOR
34000

Frequently Asked Questions

What is NSN 4820-01-190-5890?

NSN 4820-01-190-5890 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 4820-01-190-5890?

NSN 4820-01-190-5890 has 2 cross-referenced part numbers: 340 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 340-00 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-190-5890?

There are 12 known substitutes for 4820-01-190-5890: 6620-00-224-1335, 5330-00-290-0237, 3456-00-496-8695 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 340-00?

Key specifications for 340-00: Material: COPPER ALLOY OVERALL; Body Outside Diameter: 2.500 INCHES NOMINAL IN. 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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