PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40103-804Valve,regulating,temperature

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-425-6722 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-425-6722 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-425-6722. Primary manufacturer part number: 40103-804.
Features
  • Valve,regulating,temperature — FSC 4820
  • End Connection Quantity: 2
  • Material Document and Classification: QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
  • Material: NICKEL ALLOY SEAT
  • Material: NICKEL ALLOY STEM
  • Material: PLASTIC TETRAFLUOROETHYLENE PACKING
  • Material Document and Classification: QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE SEAT
  • Material: COPPER ALLOY BODY
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Seat construction
General Description

The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-425-6722, 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 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-425-6722
Primary Part Number40103-804
Item NameValve,regulating,temperature
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
End Connection Quantity2
Material Document and ClassificationQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MaterialNICKEL ALLOY SEAT
MaterialNICKEL ALLOY STEM
MaterialPLASTIC TETRAFLUOROETHYLENE PACKING
Material Document and ClassificationQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MaterialCOPPER ALLOY BODY
MaterialNICKEL ALLOY FLOW CONTROL DEVICE
Material Document and ClassificationQQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE STEM
Flow Control DevicePLUG
Second End Relationship with First EndIDENTICAL
First End Connection TypeUNTHREADED INTERNAL TUBE
First End Style DesignatorSOCKET W/BRAZING RING
First End Outside Diameter Tube Accommodated1.250 INCHES NOMINAL IN
Temp AdjustabilityADJUSTABLE
Body StyleSTRAIGHT THRU
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5805-00-034-0432401038 INTERCHANGEABLE
Latch
Western Union Telegraph Co Sub of Western Union Corp
1560-00-785-916640103-8 INTERCHANGEABLE
Insulation,duct,aircraft
Arrowhead Products Corp
1560-01-498-1804401038-1 INTERCHANGEABLE
Door,access,aircraft
Mission Systems Davenport Inc.
Cross-Reference Index
Part NumberManufacturer
40103-8 ASSY 40103-804 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40103-804 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40103-8 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
5805-00-034-0432INTERCHANGEABLE
LATCH
401038
1560-00-785-9166INTERCHANGEABLE
INSULATION,DUCT,AIRCRAFT
40103-8
1560-01-498-1804INTERCHANGEABLE
DOOR,ACCESS,AIRCRAFT
401038-1

Frequently Asked Questions

What is NSN 4820-01-425-6722?

NSN 4820-01-425-6722 is a Valve,regulating,temperature, 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 4820-01-425-6722?

NSN 4820-01-425-6722 has 3 cross-referenced part numbers: 40103-8 ASSY 40103-804 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40103-804 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40103-8 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-425-6722?

There are 3 known substitutes for 4820-01-425-6722: 5805-00-034-0432, 1560-00-785-9166, 1560-01-498-1804. Verify interchangeability with system specifications before substitution.

What are the specifications of 40103-804?

Key specifications for 40103-804: End Connection Quantity: 2; Material Document and Classification: QQ-N-288 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE; Material: NICKEL ALLOY SEAT; Material: NICKEL ALLOY STEM. 18 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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