PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A90Seat,valve

Psg California, Llc Div Dover Corporation · NSN 4820-01-192-2875 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-192-2875 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-192-2875. Primary manufacturer part number: A90.
Features
  • Seat,valve — FSC 4820
  • Material: ALUMINUM OVERALL
  • Under Flange Height: 0.090 INCHES NOMINAL IN
  • Seating Surface Shape: RADIAL
  • Flange Seat to Disk End Height: 0.220 INCHES NOMINAL IN
  • Style Designator: PLAIN FLANGED
  • Body Inside Diameter: 0.795 INCHES NOMINAL IN
  • Flange Diameter: 1.370 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-192-2875, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Psg California, Llc Div Dover Corporation. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-192-2875
Primary Part NumberA90
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerPsg California, Llc Div Dover Corporation
StatusACTIVE
MaterialALUMINUM OVERALL
Under Flange Height0.090 INCHES NOMINAL IN
Seating Surface ShapeRADIAL
Flange Seat to Disk End Height0.220 INCHES NOMINAL IN
Style DesignatorPLAIN FLANGED
Body Inside Diameter0.795 INCHES NOMINAL IN
Flange Diameter1.370 INCHES NOMINAL IN
Body Outside Diameter1.127 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5940-00-159-0373A-90 INTERCHANGEABLE
Terminal,lug
Dossert Corp
3455-00-250-077315939 INTERCHANGEABLE
Cutter,milling,end
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
6625-00-506-0533A90 INTERCHANGEABLE
Shunt,instrument
Fluke Corp
3030-00-529-0491 INTERCHANGEABLE
Belt,v
3030-00-989-3266A90S INTERCHANGEABLE
Belt,v
Gates Corporation
3030-01-007-7668 INTERCHANGEABLE
Belt,v
7690-01-262-7333A-90 INTERCHANGEABLE
Label
Shamrock Scientific Specialty Systems, Llc
7520-01-361-8980A-90 1/4 BY 1/8 IN. DIE CUT INTERCHANGEABLE
Punch,paper,hand
Henrici Controls Corporation
Cross-Reference Index
Part NumberManufacturer
A90 Psg California, Llc Div Dover Corporation (USA)
Related Parts
5940-00-159-0373INTERCHANGEABLE
TERMINAL,LUG
A-90
3455-00-250-0773INTERCHANGEABLE
CUTTER,MILLING,END
15939
6625-00-506-0533INTERCHANGEABLE
SHUNT,INSTRUMENT
A90
3030-00-529-0491INTERCHANGEABLE
BELT,V
3030-00-989-3266INTERCHANGEABLE
BELT,V
A90S
3030-01-007-7668INTERCHANGEABLE
BELT,V
7690-01-262-7333INTERCHANGEABLE
LABEL
A-90
7520-01-361-8980INTERCHANGEABLE
PUNCH,PAPER,HAND
A-90 1/4 BY 1/8 IN. DIE CUT

Frequently Asked Questions

What is NSN 4820-01-192-2875?

NSN 4820-01-192-2875 is a Seat,valve, manufactured by Psg California, Llc Div Dover Corporation, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-192-2875?

NSN 4820-01-192-2875 has 1 cross-referenced part number: A90 (Psg California, Llc Div Dover Corporation).

What NSN replaces 4820-01-192-2875?

There are 8 known substitutes for 4820-01-192-2875: 5940-00-159-0373, 3455-00-250-0773, 6625-00-506-0533 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A90?

Key specifications for A90: Material: ALUMINUM OVERALL; Under Flange Height: 0.090 INCHES NOMINAL IN; Seating Surface Shape: RADIAL; Flange Seat to Disk End Height: 0.220 INCHES NOMINAL IN. 8 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