PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40145-901Valve,regulating,temperature

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-313-8734 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-313-8734 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-313-8734. Primary manufacturer part number: 40145-901.
Features
  • Valve,regulating,temperature — FSC 4820
  • Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE STEM
  • Material: STEEL CORROSION RESISTING STEM
  • Material Document and Classification: MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE BODY
  • Material Document and Classification: MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE SEAT
  • Material Document and Classification: MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
  • Material: COPPER ALLOY 922 BODY
  • Material: COPPER ALLOY 922 FLOW CONTROL DEVICE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Stem construction
General Description

The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-313-8734, 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 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-313-8734
Primary Part Number40145-901
Item NameValve,regulating,temperature
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Material Document and ClassificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE STEM
MaterialSTEEL CORROSION RESISTING STEM
Material Document and ClassificationMIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE BODY
Material Document and ClassificationMIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE SEAT
Material Document and ClassificationMIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MaterialCOPPER ALLOY 922 BODY
MaterialCOPPER ALLOY 922 FLOW CONTROL DEVICE
MaterialCOPPER ALLOY 922 SEAT
Two-Way Valve ActionREVERSE ACTING
First End Nominal Pipe Size Accommodated2.000 INCHES IN
Flow Control DeviceDOUBLE SEATED
First End Connection TypeUNTHREADED INTERNAL PIPE
Second End Relationship with First EndIDENTICAL
End Connection Quantity2
First End Style DesignatorSOCKET W/BRAZING RING
Body StyleSTRAIGHT THRU
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4510-00-031-7634520 INTERCHANGEABLE
Faucet,double
Delta Faucet Co
5950-00-121-7708890538 INTERCHANGEABLE
Transformer,power
Bae Systems Information and Electronic Systems Integration Inc.
3455-00-231-3482TABLE 1, D3IN, H1 1/4IN, W3IN INTERCHANGEABLE
Cutter,milling,plain
The American Society of Mechanical Engineers
5330-00-285-382502243465 INTERCHANGEABLE
Gasket
Rolls-Royce Solutions America Inc
5950-01-005-15312534807 INTERCHANGEABLE
Transformer,pulse
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4820-01-149-184440145-908 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-282-015040145-805 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
3040-01-440-211740145 INTERCHANGEABLE
Collar,shaft
Setra Systems, Inc. Dba Gems Sensors
6515-01-471-7880193131 INTERCHANGEABLE
Manifold,medical
Maxxim Medical Inc
4820-01-480-585540145-401 INTERCHANGEABLE
Valve,regulating,temperature
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
40145 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40145-901 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
4510-00-031-7634INTERCHANGEABLE
FAUCET,DOUBLE
520
5950-00-121-7708INTERCHANGEABLE
TRANSFORMER,POWER
890538
3455-00-231-3482INTERCHANGEABLE
CUTTER,MILLING,PLAIN
TABLE 1, D3IN, H1 1/4IN, W3IN
5330-00-285-3825INTERCHANGEABLE
GASKET
02243465
5950-01-005-1531INTERCHANGEABLE
TRANSFORMER,PULSE
2534807
4820-01-149-1844INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40145-908
4820-01-282-0150INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40145-805
3040-01-440-2117INTERCHANGEABLE
COLLAR,SHAFT
40145
6515-01-471-7880INTERCHANGEABLE
MANIFOLD,MEDICAL
193131
4820-01-480-5855INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40145-401
8465-01-565-4022INTERCHANGEABLE
HYDRATION SYSTEM
40145

Frequently Asked Questions

What is NSN 4820-01-313-8734?

NSN 4820-01-313-8734 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 4820-01-313-8734?

NSN 4820-01-313-8734 has 2 cross-referenced part numbers: 40145 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40145-901 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-313-8734?

There are 11 known substitutes for 4820-01-313-8734: 4510-00-031-7634, 5950-00-121-7708, 3455-00-231-3482 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40145-901?

Key specifications for 40145-901: Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE STEM; Material: STEEL CORROSION RESISTING STEM; Material Document and Classification: MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE BODY; Material Document and Classification: MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE SEAT. 17 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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