PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5025Valve,regulating,fluid Pressure

Aar Allen Services, Inc Dba Aar Component Services Wellington · NSN 4820-00-505-9892 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-505-9892 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-505-9892. Primary manufacturer part number: 5025.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Renewable Seat Ring Type: PRESSED-IN
  • Filter: NOT INCLUDED
  • Thread Size and Series/type Designator: 1-1/16-12 UN FIRST END
  • Thread Size and Series/type Designator: 1/2-20 UNF SECOND END
  • Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE
  • First End Connection Type: THREADED EXTERNAL TUBE
  • Second End Connection Type: THREADED INTERNAL BOSS
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 4820-00-505-9892, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Aar Allen Services, Inc Dba Aar Component Services Wellington. Government technical data includes 27 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-505-9892
Primary Part Number5025
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAar Allen Services, Inc Dba Aar Component Services Wellington
StatusACTIVE
Renewable Seat Ring TypePRESSED-IN
FilterNOT INCLUDED
Thread Size and Series/type Designator1-1/16-12 UN FIRST END
Thread Size and Series/type Designator1/2-20 UNF SECOND END
MaterialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
First End Connection TypeTHREADED EXTERNAL TUBE
Second End Connection TypeTHREADED INTERNAL BOSS
First End Outside Diameter Tube Accommodated0.750 INCHES NOMINAL IN
Body StyleANGLE
Second End Relationship with First EndNOT IDENTICAL
First End Style DesignatorFLARED
Media for Which DesignedAIR
MaterialALUMINUM AND BRONZE SEAT
Temp Rating-65.0 FAHRENHEIT MINIMUM AND 290.0 FAHRENHEIT MAXIMUM DEGF
First End Thread DirectionRIGHT-HAND
Regulation TypeAUTOMATIC SINGLE STAGE
Mounting FacilityBRACKET
Maximum Inlet Pressure RatingERR-060
Outlet Pressure Range4.5 TO 5.0 CAMERA MOUNT
First End Seat Angle in Deg37.0
Second End Thread DirectionRIGHT-HAND
Valve Loading MethodSPRING
Second End Style DesignatorGASKET SEAL
First End Thread Class3A A
Second End Thread Class3B
End Connection Quantity2
Flow Control DevicePISTON, FREE TYPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5975-00-089-1626333 INTERCHANGEABLE
Junction Box
Egs Electrical Group Appleton Div
5975-00-097-8108 INTERCHANGEABLE
Union,electrical Conduit
1680-00-172-857367-6 INTERCHANGEABLE
Tube
Teledyne Instruments, Inc. Dba Teledyne Hastings Instruments Div Teledyne Hastings Instruments
5210-00-234-5223 INTERCHANGEABLE
Rule,machinist's
3445-00-243-266715 INTERCHANGEABLE
Punching Machine,metal,hand
Milton Machinery Co
5120-00-278-106528820 INTERCHANGEABLE
Vise,bench and Pipe
Wilton Corp Wilton Tool Div
5975-00-280-8478XK241 INTERCHANGEABLE
Coupling,electrical Conduit
Abb Installation Products Inc
4730-00-293-718167 INTERCHANGEABLE
Coupling Half,quick Disconnect
Tuthill Corp Hansen Coupling Div
5977-00-296-0703A7585721 INTERCHANGEABLE
Brush,electrical Contact
Army, United States Department of the Dba Rock Island Arsenal Jmtc
6515-00-338-0950 INTERCHANGEABLE
Forceps,tissue
Cross-Reference Index
Part NumberManufacturer
67-6 Hughes Missile Systems Co San Diego (USA)
5025 PRIMARY Aar Allen Services, Inc Dba Aar Component Services Wellington (USA)
Related Parts
5975-00-089-1626INTERCHANGEABLE
JUNCTION BOX
333
5975-00-097-8108INTERCHANGEABLE
UNION,ELECTRICAL CONDUIT
1680-00-172-8573INTERCHANGEABLE
TUBE
67-6
5210-00-234-5223INTERCHANGEABLE
RULE,MACHINIST'S
3445-00-243-2667INTERCHANGEABLE
PUNCHING MACHINE,METAL,HAND
15
5120-00-278-1065INTERCHANGEABLE
VISE,BENCH AND PIPE
28820
5975-00-280-8478INTERCHANGEABLE
COUPLING,ELECTRICAL CONDUIT
XK241
4730-00-293-7181INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
67
5977-00-296-0703INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
A7585721
6515-00-338-0950INTERCHANGEABLE
FORCEPS,TISSUE
4140-00-339-1514INTERCHANGEABLE
FAN,VENTILATING
676
3455-00-555-2070INTERCHANGEABLE
CUTTER,MILLING,END

Frequently Asked Questions

What is NSN 4820-00-505-9892?

NSN 4820-00-505-9892 is a Valve,regulating,fluid Pressure, manufactured by Aar Allen Services, Inc Dba Aar Component Services Wellington, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-505-9892?

NSN 4820-00-505-9892 has 2 cross-referenced part numbers: 67-6 (Hughes Missile Systems Co San Diego), 5025 (Aar Allen Services, Inc Dba Aar Component Services Wellington).

What NSN replaces 4820-00-505-9892?

There are 12 known substitutes for 4820-00-505-9892: 5975-00-089-1626, 5975-00-097-8108, 1680-00-172-8573 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5025?

Key specifications for 5025: Renewable Seat Ring Type: PRESSED-IN; Filter: NOT INCLUDED; Thread Size and Series/type Designator: 1-1/16-12 UN FIRST END; Thread Size and Series/type Designator: 1/2-20 UNF SECOND END. 28 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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