PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4040-201Valve,regulating,fluid Pressure

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-478-3626 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-478-3626 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-478-3626. Primary manufacturer part number: 4040-201.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • 5 verified cross-references
  • Primary manufacturer: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-478-3626, 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. This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersTrac Regulator Co., Inc. Dba Trac Regulator Co Inc (CAGE 55378); Lawler Manufacturing Company, Inc. (CAGE 75545)
Technical Specifications
ParameterValue
NSN4820-01-478-3626
Primary Part Number4040-201
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5815-00-126-864171998 INTERCHANGEABLE
Collar,locking
Telemechanics Inc
3040-00-138-861371998 INTERCHANGEABLE
Connecting Link,rigid
L3harris Technologies, Inc Div Space & Airborne Systems
1650-00-306-295971998 INTERCHANGEABLE
Adapter,hydraulic M
Northrop Grumman Systems Corporation
6120-00-985-8235404-042 INTERCHANGEABLE
Power Supply
Cmc Electronics Inc
5950-01-069-9395 INTERCHANGEABLE
Coil,radio Frequency
4820-01-133-2444762-00 INTERCHANGEABLE
Stem,fluid Valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-133-7732 INTERCHANGEABLE
Valve,regulating,fluid Pressure
5840-01-212-5296 INTERCHANGEABLE
Modulator,radar
4820-01-221-21216608 INTERCHANGEABLE
Stem,fluid Valve
Lawler Manufacturing Company, Inc.
5365-01-287-736440404-2 INTERCHANGEABLE
Spacer,sleeve
Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
Cross-Reference Index
Part NumberManufacturer
4040-201 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
2707-3IN71998-5T30PSI Lawler Manufacturing Company, Inc. (USA)
71998 TY 2707 3IN 5T30PSI Lawler Manufacturing Company, Inc. (USA)
40404-2 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
71998 Lawler Manufacturing Company, Inc. (USA)
Related Parts
5815-00-126-8641INTERCHANGEABLE
COLLAR,LOCKING
71998
3040-00-138-8613INTERCHANGEABLE
CONNECTING LINK,RIGID
71998
1650-00-306-2959INTERCHANGEABLE
ADAPTER,HYDRAULIC M
71998
6120-00-985-8235INTERCHANGEABLE
POWER SUPPLY
404-042
5950-01-069-9395INTERCHANGEABLE
COIL,RADIO FREQUENCY
4820-01-133-2444INTERCHANGEABLE
STEM,FLUID VALVE
762-00
4820-01-133-7732INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
5840-01-212-5296INTERCHANGEABLE
MODULATOR,RADAR
4820-01-221-2121INTERCHANGEABLE
STEM,FLUID VALVE
6608
5365-01-287-7364INTERCHANGEABLE
SPACER,SLEEVE
40404-2
6150-01-288-4843INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
10-4472
4820-01-467-7109INTERCHANGEABLE
SEAT,VALVE
768-04

Frequently Asked Questions

What is NSN 4820-01-478-3626?

NSN 4820-01-478-3626 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 4820-01-478-3626?

NSN 4820-01-478-3626 has 5 cross-referenced part numbers: 4040-201 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 2707-3IN71998-5T30PSI (Lawler Manufacturing Company, Inc.), 71998 TY 2707 3IN 5T30PSI (Lawler Manufacturing Company, Inc.), 40404-2 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 71998 (Lawler Manufacturing Company, Inc.).

What NSN replaces 4820-01-478-3626?

There are 12 known substitutes for 4820-01-478-3626: 5815-00-126-8641, 3040-00-138-8613, 1650-00-306-2959 and 9 more. Verify interchangeability with system specifications before substitution.

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