PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25522Seat,valve

Circor Aerospace, Inc. Dba Circor Aerospace Inc · NSN 4820-01-306-6151 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-306-6151 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-306-6151. Primary manufacturer part number: 25522.
Features
  • Seat,valve — FSC 4820
  • 1 verified cross-reference
  • 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 4820-01-306-6151, 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. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersCircor Aerospace, Inc. Dba Circor Aerospace Inc (CAGE 91816)
Technical Specifications
ParameterValue
NSN4820-01-306-6151
Primary Part Number25522
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCircor Aerospace, Inc. Dba Circor Aerospace Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3110-00-100-054625522 INTERCHANGEABLE
Cup,tapered Roller Bearing
Rbc Bearings Incorporated Div West Trenton Division
6830-00-192-9067 INTERCHANGEABLE
Nitrogen
9905-00-405-197225522 INTERCHANGEABLE
Band,marker
Hydro-Aire Aerospace Corp
3020-00-446-8380255-22 INTERCHANGEABLE
Gear,spur
Southern Gear & Machine Inc
4710-01-012-352925522 INTERCHANGEABLE
Tube Assembly,metal
Williams International Co., L.l.c.
5310-01-078-780425522R1 INTERCHANGEABLE
Nut,plain,hexagon
Nd Defense Llc
4940-01-104-127010341 INTERCHANGEABLE
Seat
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
4720-01-128-458625522 INTERCHANGEABLE
Hose Assembly,nonmetallic
Stewart & Stevenson Power Products Llc
5990-01-167-7043 INTERCHANGEABLE
Resolver,electrical,linear
4320-01-323-8247 INTERCHANGEABLE
Piston,hydraulic Motor-Pump
Cross-Reference Index
Part NumberManufacturer
25522 PRIMARY Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
Related Parts
3110-00-100-0546INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
25522
6830-00-192-9067INTERCHANGEABLE
NITROGEN
9905-00-405-1972INTERCHANGEABLE
BAND,MARKER
25522
3020-00-446-8380INTERCHANGEABLE
GEAR,SPUR
255-22
4710-01-012-3529INTERCHANGEABLE
TUBE ASSEMBLY,METAL
25522
5310-01-078-7804INTERCHANGEABLE
NUT,PLAIN,HEXAGON
25522R1
4940-01-104-1270INTERCHANGEABLE
SEAT
10341
4720-01-128-4586INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
25522
5990-01-167-7043INTERCHANGEABLE
RESOLVER,ELECTRICAL,LINEAR
4320-01-323-8247INTERCHANGEABLE
PISTON,HYDRAULIC MOTOR-PUMP

Frequently Asked Questions

What is NSN 4820-01-306-6151?

NSN 4820-01-306-6151 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 4820-01-306-6151?

NSN 4820-01-306-6151 has 1 cross-referenced part number: 25522 (Circor Aerospace, Inc. Dba Circor Aerospace Inc).

What NSN replaces 4820-01-306-6151?

There are 10 known substitutes for 4820-01-306-6151: 3110-00-100-0546, 6830-00-192-9067, 9905-00-405-1972 and 7 more. Verify interchangeability with system specifications before substitution.

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