PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

341-01Seat,valve

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-00-824-5274 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-824-5274 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-824-5274. Primary manufacturer part number: 341-01.
Features
  • Seat,valve — FSC 4820
  • Material: NICKEL ALLOY OVERALL
  • Style Designator: PLAIN FLANGED
  • Body Outside Diameter: 2.438 INCHES NOMINAL IN
  • Thread Length: 0.250 INCHES NOMINAL SINGLE THREADED PORTION IN
  • Hardness Rating: 125.0 BRINELL STANDARD MINIMUM AND 150.0 BRINELL STANDARD MAXIMUM BODY
  • Hardness Rating: 125.0 BRINELL STANDARD MINIMUM AND 150.0 BRINELL STANDARD MAXIMUM FACE
  • Seating Surface Shape: ANGULAR
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-824-5274, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, 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
NSN4820-00-824-5274
Primary Part Number341-01
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
MaterialNICKEL ALLOY OVERALL
Style DesignatorPLAIN FLANGED
Body Outside Diameter2.438 INCHES NOMINAL IN
Thread Length0.250 INCHES NOMINAL SINGLE THREADED PORTION IN
Hardness Rating125.0 BRINELL STANDARD MINIMUM AND 150.0 BRINELL STANDARD MAXIMUM BODY
Hardness Rating125.0 BRINELL STANDARD MINIMUM AND 150.0 BRINELL STANDARD MAXIMUM FACE
Seating Surface ShapeANGULAR
Thread Class2A SINGLE THREADED PORTION A
Seat Angle in Deg30.000 NOMINAL
Flange Seat to Disk End Height0.375 INCHES NOMINAL IN
Nominal Thread Size2.438 INCHES SINGLE THREADED PORTION IN
Thread Series DesignatorUNS SINGLE THREADED PORTION
Under Flange Height0.375 INCHES NOMINAL IN
Flange Diameter2.781 INCHES NOMINAL IN
Thread Quantity Per Inch11 SINGLE THREADED PORTION
Body Inside Diameter2.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-054-14862743-9 INTERCHANGEABLE
Connector,plug,electrical
Microwave Devices Inc
5905-00-106-7014 INTERCHANGEABLE
Resistor Set,matched
5961-00-166-02201668 INTERCHANGEABLE
Semiconductor Device Assembly
L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
5950-00-249-257634101 INTERCHANGEABLE
Coil,radio Frequency
Beta Labs Inc a-B and Millen Mfg Div
2825-00-389-8452D15-743-86 INTERCHANGEABLE
Yoke,hand Valve
Northrop Grumman Systems Corporation Div Marine Systems
5310-00-465-6756 INTERCHANGEABLE
Washer Spring
4820-00-528-23624200 INTERCHANGEABLE
Valve,check
Fluid Power, Inc.
5975-00-676-8392822 INTERCHANGEABLE
Disk,end Seal,electrical Conduit
Abb Installation Products Inc
5970-00-912-1949 INTERCHANGEABLE
Insulation Sheet,electrical
1660-00-960-4493 INTERCHANGEABLE
Filler Valve,aircraft Oxygen
Cross-Reference Index
Part NumberManufacturer
1668 Lawler Manufacturing Company, Inc. (USA)
341-01 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
1404DPC19 Lawler Manufacturing Company, Inc. (USA)
1668 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
5935-00-054-1486INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
2743-9
5905-00-106-7014INTERCHANGEABLE
RESISTOR SET,MATCHED
5961-00-166-0220INTERCHANGEABLE
SEMICONDUCTOR DEVICE ASSEMBLY
1668
5950-00-249-2576INTERCHANGEABLE
COIL,RADIO FREQUENCY
34101
2825-00-389-8452INTERCHANGEABLE
YOKE,HAND VALVE
D15-743-86
5310-00-465-6756INTERCHANGEABLE
WASHER SPRING
4820-00-528-2362INTERCHANGEABLE
VALVE,CHECK
4200
5975-00-676-8392INTERCHANGEABLE
DISK,END SEAL,ELECTRICAL CONDUIT
822
5970-00-912-1949INTERCHANGEABLE
INSULATION SHEET,ELECTRICAL
1660-00-960-4493INTERCHANGEABLE
FILLER VALVE,AIRCRAFT OXYGEN
3040-00-975-9786INTERCHANGEABLE
SHAFT,STRAIGHT
4730-01-007-1965INTERCHANGEABLE
FITTING,LUBRICATION

Frequently Asked Questions

What is NSN 4820-00-824-5274?

NSN 4820-00-824-5274 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 4820-00-824-5274?

NSN 4820-00-824-5274 has 4 cross-referenced part numbers: 1668 (Lawler Manufacturing Company, Inc.), 341-01 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 1404DPC19 (Lawler Manufacturing Company, Inc.), 1668 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-00-824-5274?

There are 12 known substitutes for 4820-00-824-5274: 5935-00-054-1486, 5905-00-106-7014, 5961-00-166-0220 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 341-01?

Key specifications for 341-01: Material: NICKEL ALLOY OVERALL; Style Designator: PLAIN FLANGED; Body Outside Diameter: 2.438 INCHES NOMINAL IN; Thread Length: 0.250 INCHES NOMINAL SINGLE THREADED PORTION IN. 16 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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