PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40754-401Valve,regulating,fluid Pressure

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-521-0018 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-521-0018 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-521-0018. Primary manufacturer part number: 40754-401.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Face to Face Distance: 9.500 INCHES NOMINAL IN
  • First End Nominal Pipe Size Accommodated: 0.500 INCHES IN
  • Valve Stem Design: SINGLE SEAT
  • Outlet Pressure Range: 5.0 TO 60.0 CAMERA MOUNT
  • Material: NICKEL ALLOY AND COPPER ALLOY SEAT
  • Valve Loading Method: SPRING
  • Maximum Inlet Pressure Rating: ERR-060
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy and Copper Alloy Seat construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-521-0018, 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 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-521-0018
Primary Part Number40754-401
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Face to Face Distance9.500 INCHES NOMINAL IN
First End Nominal Pipe Size Accommodated0.500 INCHES IN
Valve Stem DesignSINGLE SEAT
Outlet Pressure Range5.0 TO 60.0 CAMERA MOUNT
MaterialNICKEL ALLOY AND COPPER ALLOY SEAT
Valve Loading MethodSPRING
Maximum Inlet Pressure RatingERR-060
FilterNOT INCLUDED
First End Style DesignatorSOCKET
Media for Which DesignedWATER
Regulation TypeAUTOMATIC SINGLE STAGE
Renewable Seat Ring TypeRETAINING RING
End Connection Quantity2
Body StyleSTRAIGHT THRU
MaterialNICKEL ALLOY STEM
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
Flow Control DeviceDISK
Valve Size0.500 INCHES IN
First End Connection TypeUNTHREADED INTERNAL PIPE
Material Document and ClassificationUNABLE TO DECODE
End Connection Spec/std53711-803-1385946
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5935-00-910-681940754-401 INTERCHANGEABLE
Connector,plug,electrical
The Boeing Company Div Legacy Boeing Hb1
5995-01-066-8218407544 INTERCHANGEABLE
Cable Assembly
Telemechanics Inc
2815-01-320-8514300376 INTERCHANGEABLE
Cylinder Sleeve
Bird-Johnson Propeller Company, Llc
4820-01-521-0019930-03 INTERCHANGEABLE
Seat,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-521-0020937-01 INTERCHANGEABLE
Stem,fluid Valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
5365-01-521-388960144-03 INTERCHANGEABLE
Bottom Plug Assembly
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
40754-4 ASSY 40754-401 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
MIL-V-2042 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
40754-4 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40754-401 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
F-1370-92 American Society for Testing and Materials Dba Astm International (USA)
Related Parts
5935-00-910-6819INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
40754-401
5995-01-066-8218INTERCHANGEABLE
CABLE ASSEMBLY
407544
2815-01-320-8514INTERCHANGEABLE
CYLINDER SLEEVE
300376
4820-01-521-0019INTERCHANGEABLE
SEAT,VALVE
930-03
4820-01-521-0020INTERCHANGEABLE
STEM,FLUID VALVE
937-01
5365-01-521-3889INTERCHANGEABLE
BOTTOM PLUG ASSEMBLY
60144-03

Frequently Asked Questions

What is NSN 4820-01-521-0018?

NSN 4820-01-521-0018 is a Valve,regulating,fluid Pressure, 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 4820-01-521-0018?

NSN 4820-01-521-0018 has 5 cross-referenced part numbers: 40754-4 ASSY 40754-401 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), MIL-V-2042 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 40754-4 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40754-401 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), F-1370-92 (American Society for Testing and Materials Dba Astm International).

What NSN replaces 4820-01-521-0018?

There are 6 known substitutes for 4820-01-521-0018: 5935-00-910-6819, 5995-01-066-8218, 2815-01-320-8514 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40754-401?

Key specifications for 40754-401: Face to Face Distance: 9.500 INCHES NOMINAL IN; First End Nominal Pipe Size Accommodated: 0.500 INCHES IN; Valve Stem Design: SINGLE SEAT; Outlet Pressure Range: 5.0 TO 60.0 CAMERA MOUNT. 24 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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