PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7995-3 5INSeat,valve

William E Williams Valve Corp · NSN 4820-01-294-1785 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-294-1785 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-294-1785. Primary manufacturer part number: 7995-3 5IN.
Features
  • Seat,valve — FSC 4820
  • Seating Surface Shape: FLAT
  • Style Designator: PLAIN
  • Material: COPPER ALLOY OVERALL
  • 3 verified cross-references
  • Primary manufacturer: William E Williams Valve Corp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-294-1785, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is William E Williams Valve Corp. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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
NSN4820-01-294-1785
Primary Part Number7995-3 5IN
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWilliam E Williams Valve Corp
StatusACTIVE
Seating Surface ShapeFLAT
Style DesignatorPLAIN
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-201-2755CV799-5 INTERCHANGEABLE
Adapter,connector
Winchester Interconnect Corporation
3120-00-808-2171B32L INTERCHANGEABLE
Bearing,plain,self-Aligning
Rbc Bearings Incorporated Div West Trenton Division
5998-01-080-214479953 INTERCHANGEABLE
Circuit Card Assembly
Drs Signal Solutions, Inc.
4820-01-278-62287995-15 INTERCHANGEABLE
Stem,fluid Valve
William E Williams Valve Corp
4820-01-278-62807995-2 INTERCHANGEABLE
Disk,valve
William E Williams Valve Corp
4820-01-278-73977995 ITEM 3 8IN INTERCHANGEABLE
Seat,valve
William E Williams Valve Corp
4820-01-293-86027995-2 5IN INTERCHANGEABLE
Disk,valve
William E Williams Valve Corp
4820-01-294-72487995-15 5IN INTERCHANGEABLE
Stem,fluid Valve
William E Williams Valve Corp
4820-01-294-9517B112A2 1/2 INCH INTERCHANGEABLE
Valve,gate
Hunt Valve Company, Inc.
4820-01-294-95187995 ITEM 141F 5IN INTERCHANGEABLE
Valve,gate
William E Williams Valve Corp
Cross-Reference Index
Part NumberManufacturer
7995 William E Williams Valve Corp (USA)
7995-3 5IN PRIMARY William E Williams Valve Corp (USA)
7995-3 William E Williams Valve Corp (USA)
Related Parts
5935-00-201-2755INTERCHANGEABLE
ADAPTER,CONNECTOR
CV799-5
3120-00-808-2171INTERCHANGEABLE
BEARING,PLAIN,SELF-ALIGNING
B32L
5998-01-080-2144INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
79953
4820-01-278-6228INTERCHANGEABLE
STEM,FLUID VALVE
7995-15
4820-01-278-6280INTERCHANGEABLE
DISK,VALVE
7995-2
4820-01-278-7397INTERCHANGEABLE
SEAT,VALVE
7995 ITEM 3 8IN
4820-01-293-8602INTERCHANGEABLE
DISK,VALVE
7995-2 5IN
4820-01-294-7248INTERCHANGEABLE
STEM,FLUID VALVE
7995-15 5IN
4820-01-294-9517INTERCHANGEABLE
VALVE,GATE
B112A2 1/2 INCH
4820-01-294-9518INTERCHANGEABLE
VALVE,GATE
7995 ITEM 141F 5IN
4820-01-301-0383INTERCHANGEABLE
STEM,FLUID VALVE
141F ITEM 15 6IN
5330-01-303-2518INTERCHANGEABLE
SEAL,GATE VALVE
7995-8 6IN

Frequently Asked Questions

What is NSN 4820-01-294-1785?

NSN 4820-01-294-1785 is a Seat,valve, manufactured by William E Williams Valve Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-294-1785?

NSN 4820-01-294-1785 has 3 cross-referenced part numbers: 7995 (William E Williams Valve Corp), 7995-3 5IN (William E Williams Valve Corp), 7995-3 (William E Williams Valve Corp).

What NSN replaces 4820-01-294-1785?

There are 12 known substitutes for 4820-01-294-1785: 5935-00-201-2755, 3120-00-808-2171, 5998-01-080-2144 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7995-3 5IN?

Key specifications for 7995-3 5IN: Seating Surface Shape: FLAT; Style Designator: PLAIN; Material: COPPER ALLOY OVERALL. 3 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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