PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

UL252-TYPE-1Valve,regulating,fluid Pressure

American National Standards Institute Incorporated Dba American National Standards Institute · NSN 4820-00-551-1094 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-551-1094 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-551-1094. Primary manufacturer part number: UL252-TYPE-1.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • First End Outside Diameter Tube Accommodated: 0.250 INCHES NOMINAL IN
  • Second End Seat Angle in Deg: 37.0
  • Filter: INCLUDED
  • Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE
  • Nondefinitive Spec/std Data: 1 TYPE
  • First End Thread Class: 2A A
  • Thread Size and Series/type Designator: 0.880-14 NGO SECOND END
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Flow Control Device construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-551-1094, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is American National Standards Institute Incorporated Dba American National Standards Institute. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-551-1094
Primary Part NumberUL252-TYPE-1
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAmerican National Standards Institute Incorporated Dba American National Standards Institute
StatusCANCELLED
First End Outside Diameter Tube Accommodated0.250 INCHES NOMINAL IN
Second End Seat Angle in Deg37.0
FilterINCLUDED
MaterialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
Nondefinitive Spec/std Data1 TYPE
First End Thread Class2A A
Thread Size and Series/type Designator0.880-14 NGO SECOND END
Thread Size and Series/type Designator9/16-18 UNF FIRST END
Media for Which DesignedACETYLENE
Furnished ItemsBONNET AND DIAL AND INDICATOR
Body StyleSTRAIGHT THRU
First End Connection TypeTHREADED EXTERNAL TUBE
First End Style DesignatorCOMPRESSION
Manual Control MethodKNOB
Temp Rating-40.0 FAHRENHEIT MINIMUM AND 165.0 FAHRENHEIT MAXIMUM DEGF
Second End Relationship with First EndNOT IDENTICAL
Second End Thread Class2A A
Valve Loading MethodSPRING
End Connection Quantity2
Maximum Inlet Pressure RatingERR-060
Second End Outside Diameter Tube Accommodated0.625 INCHES NOMINAL IN
Second End Connection TypeTHREADED EXTERNAL TUBE
Second End Style DesignatorFLARED
Flow Control DeviceDIAPHRAGM
Second End Thread DirectionLEFT-HAND
First End Thread DirectionLEFT-HAND
First End Seat Radius0.062 INCHES NOMINAL IN
Regulation TypeMANUAL SINGLE STAGE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
4820-00-007-4596RV8011-1 INTERCHANGEABLE
Regulator,compressed Gas
Uniweld Products, Inc. Dba Uniweld Products Inc
4820-00-285-60670781-3983 INTERCHANGEABLE
Regulator,compressed Gas
Victor Equipment Co
4820-00-641-3519UL 252-TYPE-3 INTERCHANGEABLE
Valve,regulating,fluid Pressure
American National Standards Institute Incorporated Dba American National Standards Institute
2520-00-737-317970-30-15 INTERCHANGEABLE
Countershaft Transm
Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products
6250-01-046-6347 INTERCHANGEABLE
Lampholder
4820-01-194-93240781-0043 INTERCHANGEABLE
Regulator,compressed Gas
Victor Equipment Co
Cross-Reference Index
Part NumberManufacturer
1362470 Oshkosh Defense Llc (USA)
VTS410A968 Victor Equipment Co (USA)
0781-3983 Victor Equipment Co (USA)
AA55540-1 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
1362470 Oshkosh Corp (USA)
70-3015 Harris J W Co Inc Harris Welco Div (USA)
VTS460A-300 Victor Equipment Co (USA)
UL252 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
RVT8011 Uniweld Products, Inc. Dba Uniweld Products Inc (USA)
0781-6013 Victor Equipment Co (USA)
UL252-TYPE-1 PRIMARY American National Standards Institute Incorporated Dba American National Standards Institute (USA)
A-A-55540 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
MILR13877 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4820-00-007-4596INTERCHANGEABLE
REGULATOR,COMPRESSED GAS
RV8011-1
4820-00-285-6067INTERCHANGEABLE
REGULATOR,COMPRESSED GAS
0781-3983
4820-00-641-3519INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
UL 252-TYPE-3
2520-00-737-3179INTERCHANGEABLE
COUNTERSHAFT TRANSM
70-30-15
6250-01-046-6347INTERCHANGEABLE
LAMPHOLDER
4820-01-194-9324INTERCHANGEABLE
REGULATOR,COMPRESSED GAS
0781-0043

Frequently Asked Questions

What is NSN 4820-00-551-1094?

NSN 4820-00-551-1094 is a Valve,regulating,fluid Pressure, manufactured by American National Standards Institute Incorporated Dba American National Standards Institute, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-551-1094?

NSN 4820-00-551-1094 has 13 cross-referenced part numbers: 1362470 (Oshkosh Defense Llc), VTS410A968 (Victor Equipment Co), 0781-3983 (Victor Equipment Co), AA55540-1 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 1362470 (Oshkosh Corp) and 8 more.

What NSN replaces 4820-00-551-1094?

There are 6 known substitutes for 4820-00-551-1094: 4820-00-007-4596, 4820-00-285-6067, 4820-00-641-3519 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of UL252-TYPE-1?

Key specifications for UL252-TYPE-1: First End Outside Diameter Tube Accommodated: 0.250 INCHES NOMINAL IN; Second End Seat Angle in Deg: 37.0; Filter: INCLUDED; Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE. 28 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-551-1094 still in active supply?

NSN 4820-00-551-1094 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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