PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

931-00Disk,valve

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-168-2161 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-168-2161 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-168-2161. Primary manufacturer part number: 931-00.
Features
  • Disk,valve — FSC 4820
  • Material: RUBBER
  • Temp Rating: 50.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF
  • Media for Which Designed: WATER, SALT
  • Style Designator: PLAIN
  • Inside Diameter: 0.266 INCHES NOMINAL IN
  • Outside Diameter: 0.812 INCHES NOMINAL IN
  • 6 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-168-2161, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-168-2161
Primary Part Number931-00
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusCANCELLED
MaterialRUBBER
Temp Rating50.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF
Media for Which DesignedWATER, SALT
Style DesignatorPLAIN
Inside Diameter0.266 INCHES NOMINAL IN
Outside Diameter0.812 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6515-00-106-847793-100 INTERCHANGEABLE
Heel,orthopedic Cast
Stryker Corporation Div Use for Open Payments Only
4820-01-168-1949930-02 INTERCHANGEABLE
Seat,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-168-195640398-901 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-168-2162923 INTERCHANGEABLE
Diaphragm,valve,flat
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-220-270440397-902 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-242-8144 INTERCHANGEABLE
Stem,fluid Valve
4820-01-242-8146932-00 INTERCHANGEABLE
Retainer,disk,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-242-8149960-00 INTERCHANGEABLE
Body,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-243-1493 INTERCHANGEABLE
Guide,valve Stem
5340-01-243-3658 INTERCHANGEABLE
Seat,helical Compression Spring
Cross-Reference Index
Part NumberManufacturer
40398-09 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
931-00 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40397-09 FIND 14 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
931 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40397-09 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40398-09 FIND 14 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
6515-00-106-8477INTERCHANGEABLE
HEEL,ORTHOPEDIC CAST
93-100
4820-01-168-1949INTERCHANGEABLE
SEAT,VALVE
930-02
4820-01-168-1956INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40398-901
4820-01-168-2162INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
923
4820-01-220-2704INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40397-902
4820-01-242-8144INTERCHANGEABLE
STEM,FLUID VALVE
4820-01-242-8146INTERCHANGEABLE
RETAINER,DISK,VALVE
932-00
4820-01-242-8149INTERCHANGEABLE
BODY,VALVE
960-00
4820-01-243-1493INTERCHANGEABLE
GUIDE,VALVE STEM
5340-01-243-3658INTERCHANGEABLE
SEAT,HELICAL COMPRESSION SPRING
4820-01-243-5325INTERCHANGEABLE
GUIDE,VALVE STEM
60143-00
7110-01-548-0157INTERCHANGEABLE
DESK,SHOP
93100

Frequently Asked Questions

What is NSN 4820-01-168-2161?

NSN 4820-01-168-2161 is a Disk,valve, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-168-2161?

NSN 4820-01-168-2161 has 6 cross-referenced part numbers: 40398-09 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 931-00 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40397-09 FIND 14 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 931 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40397-09 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc) and 1 more.

What NSN replaces 4820-01-168-2161?

There are 12 known substitutes for 4820-01-168-2161: 6515-00-106-8477, 4820-01-168-1949, 4820-01-168-1956 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 931-00?

Key specifications for 931-00: Material: RUBBER; Temp Rating: 50.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF; Media for Which Designed: WATER, SALT; Style Designator: PLAIN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-168-2161 still in active supply?

NSN 4820-01-168-2161 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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