PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

104525Seat,valve

William Powell Company, the Dba Powell Valve Div the Starflo Corporation · NSN 4820-01-234-7817 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-234-7817 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-234-7817. Primary manufacturer part number: 104525.
Features
  • Seat,valve — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: William Powell Company, the Dba Powell Valve Div the Starflo Corporation
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-234-7817, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is William Powell Company, the Dba Powell Valve Div the Starflo Corporation. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 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)
ManufacturersWilliam Powell Company, the Dba Powell Valve Div the Starflo Corporation (CAGE 48422)
Technical Specifications
ParameterValue
NSN4820-01-234-7817
Primary Part Number104525
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWilliam Powell Company, the Dba Powell Valve Div the Starflo Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-156-4243066-22 INTERCHANGEABLE
Bearing,ball,annular
Lockheed Martin Corporation Div Rms - Mitchel Field
6760-01-148-6476 INTERCHANGEABLE
Filter,camera Set
Cross-Reference Index
Part NumberManufacturer
104525 PRIMARY William Powell Company, the Dba Powell Valve Div the Starflo Corporation (USA)
Related Parts
3110-00-156-4243INTERCHANGEABLE
BEARING,BALL,ANNULAR
066-22
6760-01-148-6476INTERCHANGEABLE
FILTER,CAMERA SET

Frequently Asked Questions

What is NSN 4820-01-234-7817?

NSN 4820-01-234-7817 is a Seat,valve, manufactured by William Powell Company, the Dba Powell Valve Div the Starflo Corporation, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-234-7817?

NSN 4820-01-234-7817 has 1 cross-referenced part number: 104525 (William Powell Company, the Dba Powell Valve Div the Starflo Corporation).

What NSN replaces 4820-01-234-7817?

There are 2 known substitutes for 4820-01-234-7817: 3110-00-156-4243, 6760-01-148-6476. Verify interchangeability with system specifications before substitution.

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