PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

103451Valve,regulating,fluid Pressure

Defense & Development Enterprises Llc · NSN 4820-00-225-0934 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-225-0934 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-225-0934. Primary manufacturer part number: 103451.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Outlet Pressure Accuracy Rating: ERR-060
  • Regulation Type: AUTOMATIC SINGLE STAGE
  • Valve Loading Method: SPRING
  • Temp Rating: -65.0 FAHRENHEIT MINIMUM AND 160.0 FAHRENHEIT MAXIMUM DEGF
  • End Connection Quantity: 2
  • Maximum Inlet Pressure Rating: ERR-060
  • Body Style: ANGLE W/OFFSET
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-225-0934, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Defense & Development Enterprises Llc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-225-0934
Primary Part Number103451
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDefense & Development Enterprises Llc
StatusACTIVE
Outlet Pressure Accuracy RatingERR-060
Regulation TypeAUTOMATIC SINGLE STAGE
Valve Loading MethodSPRING
Temp Rating-65.0 FAHRENHEIT MINIMUM AND 160.0 FAHRENHEIT MAXIMUM DEGF
End Connection Quantity2
Maximum Inlet Pressure RatingERR-060
Body StyleANGLE W/OFFSET
Outlet Pressure SettingERR-060
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4320-00-127-2714322510 INTERCHANGEABLE
Rod,piston
Curtiss-Wright Electro-Mechanical Corporation Div Epd
4610-01-359-7123 INTERCHANGEABLE
Product Port
Cross-Reference Index
Part NumberManufacturer
103451 Defense & Development Enterprises Llc (USA)
103451 Triumph Thermal Systems - Maryland, Inc. (USA)
Related Parts
4320-00-127-2714INTERCHANGEABLE
ROD,PISTON
322510
4610-01-359-7123INTERCHANGEABLE
PRODUCT PORT

Frequently Asked Questions

What is NSN 4820-00-225-0934?

NSN 4820-00-225-0934 is a Valve,regulating,fluid Pressure, manufactured by Defense & Development Enterprises Llc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-225-0934?

NSN 4820-00-225-0934 has 2 cross-referenced part numbers: 103451 (Defense & Development Enterprises Llc), 103451 (Triumph Thermal Systems - Maryland, Inc.).

What NSN replaces 4820-00-225-0934?

There are 2 known substitutes for 4820-00-225-0934: 4320-00-127-2714, 4610-01-359-7123. Verify interchangeability with system specifications before substitution.

What are the specifications of 103451?

Key specifications for 103451: Outlet Pressure Accuracy Rating: ERR-060; Regulation Type: AUTOMATIC SINGLE STAGE; Valve Loading Method: SPRING; Temp Rating: -65.0 FAHRENHEIT MINIMUM AND 160.0 FAHRENHEIT MAXIMUM DEGF. 8 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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