PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

931-01Disk,valve

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-376-2746 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-376-2746 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-376-2746. Primary manufacturer part number: 931-01.
Features
  • Disk,valve — FSC 4820
  • Temp Rating: 250.0 FAHRENHEIT NOMINAL DEGF
  • Inside Diameter: 0.266 INCHES NOMINAL IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • Style Designator: PLAIN
  • Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
  • Outside Diameter: 0.812 INCHES NOMINAL IN
  • Media for Which Designed: WATER, SALT
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-376-2746, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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
NSN4820-01-376-2746
Primary Part Number931-01
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Temp Rating250.0 FAHRENHEIT NOMINAL DEGF
Inside Diameter0.266 INCHES NOMINAL IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Style DesignatorPLAIN
Pressure Rating150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Outside Diameter0.812 INCHES NOMINAL IN
Media for Which DesignedWATER, SALT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5975-00-097-851193101 INTERCHANGEABLE
Plate,wall,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5330-00-487-8106 INTERCHANGEABLE
Washer-Paper Zero a
5975-00-682-0559UL514A INTERCHANGEABLE
Plate,wall,electrical
Underwriters Laboratories Inc
7530-01-026-4702405069 INTERCHANGEABLE
Label
Telemechanics Inc
4820-01-175-1282937-00 INTERCHANGEABLE
Stem,fluid Valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
5305-01-285-739693-101 INTERCHANGEABLE
Screw,machine
Elbit Systems C4i and Cyber Ltd Div C4i and Cyber
4820-01-376-271240506-905 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-376-2749923-01 INTERCHANGEABLE
Diaphragm,valve,flat
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-377-939540506-902 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
2815-01-378-7483 INTERCHANGEABLE
Screw,adjusting,valve Tappet
Cross-Reference Index
Part NumberManufacturer
40398-4 FIND NO 14 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40506-9 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
931 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
931-01 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40506-9 ITEM 14 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
5975-00-097-8511INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
93101
5330-00-487-8106INTERCHANGEABLE
WASHER-PAPER ZERO A
5975-00-682-0559INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
UL514A
7530-01-026-4702INTERCHANGEABLE
LABEL
405069
4820-01-175-1282INTERCHANGEABLE
STEM,FLUID VALVE
937-00
5305-01-285-7396INTERCHANGEABLE
SCREW,MACHINE
93-101
4820-01-376-2712INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40506-905
4820-01-376-2749INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
923-01
4820-01-377-9395INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40506-902
2815-01-378-7483INTERCHANGEABLE
SCREW,ADJUSTING,VALVE TAPPET
4820-01-528-9796INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
5975-01-684-2817INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
93101

Frequently Asked Questions

What is NSN 4820-01-376-2746?

NSN 4820-01-376-2746 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 4820-01-376-2746?

NSN 4820-01-376-2746 has 5 cross-referenced part numbers: 40398-4 FIND NO 14 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40506-9 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 931 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 931-01 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40506-9 ITEM 14 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-376-2746?

There are 12 known substitutes for 4820-01-376-2746: 5975-00-097-8511, 5330-00-487-8106, 5975-00-682-0559 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 931-01?

Key specifications for 931-01: Temp Rating: 250.0 FAHRENHEIT NOMINAL DEGF; Overall Height: 0.188 INCHES NOMINAL IN; Inside Diameter: 0.266 INCHES NOMINAL IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 9 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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