PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RV53-12-25539Seat,valve

Circor Aerospace, Inc. Dba Circor Aerospace Inc · NSN 4820-01-492-1452 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-492-1452 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-492-1452. Primary manufacturer part number: RV53-12-25539.
Features
  • Seat,valve — FSC 4820
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • 2 verified cross-references
  • Primary manufacturer: Circor Aerospace, Inc. Dba Circor Aerospace Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-492-1452, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Circor Aerospace, Inc. Dba Circor Aerospace Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-492-1452
Primary Part NumberRV53-12-25539
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCircor Aerospace, Inc. Dba Circor Aerospace Inc
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4720-00-143-38301857-25545 INTERCHANGEABLE
Hose Assembly,nonmetallic
Wheeler Fleet Solutions, Co.
5342-00-415-7264108B0649300R1500 INTERCHANGEABLE
Bracket,valve Gear
Clyde Union Inc Dba Clydeunion Pumps
3455-01-046-148650-10622 4533-G INTERCHANGEABLE
Reamer,machine
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5325-01-240-716325539 INTERCHANGEABLE
Ring,retaining
Twg Canada Consolidated Inc
4730-01-266-2093207469 INTERCHANGEABLE
Flange,pipe
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
Cross-Reference Index
Part NumberManufacturer
RV53-12-25539 Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
25539 Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
Related Parts
4720-00-143-3830INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
1857-25545
5342-00-415-7264INTERCHANGEABLE
BRACKET,VALVE GEAR
108B0649300R1500
3455-01-046-1486INTERCHANGEABLE
REAMER,MACHINE
50-10622 4533-G
5325-01-240-7163INTERCHANGEABLE
RING,RETAINING
25539
4730-01-266-2093INTERCHANGEABLE
FLANGE,PIPE
207469

Frequently Asked Questions

What is NSN 4820-01-492-1452?

NSN 4820-01-492-1452 is a Seat,valve, manufactured by Circor Aerospace, Inc. Dba Circor Aerospace Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-492-1452?

NSN 4820-01-492-1452 has 2 cross-referenced part numbers: RV53-12-25539 (Circor Aerospace, Inc. Dba Circor Aerospace Inc), 25539 (Circor Aerospace, Inc. Dba Circor Aerospace Inc).

What NSN replaces 4820-01-492-1452?

There are 5 known substitutes for 4820-01-492-1452: 4720-00-143-3830, 5342-00-415-7264, 3455-01-046-1486 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RV53-12-25539?

Key specifications for RV53-12-25539: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com