PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8884 ITEMS 4 AND 6 20INSeat,valve

William E Williams Valve Corp · NSN 4820-01-294-6049 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-294-6049 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-294-6049. Primary manufacturer part number: 8884 ITEMS 4 AND 6 20IN.
Features
  • Seat,valve — FSC 4820
  • Material: COPPER ALLOY 836 SEAT
  • 2 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 836 Seat construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-294-6049, 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 1 verified specification, 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-294-6049
Primary Part Number8884 ITEMS 4 AND 6 20IN
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWilliam E Williams Valve Corp
StatusACTIVE
MaterialCOPPER ALLOY 836 SEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5935-00-162-7213801102 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Bae Systems Information and Electronic Systems Integration Inc.
5315-00-200-28688331327 INTERCHANGEABLE
Pin,grooved,headless
U S Army Tank Automotive Command Amsta-Im-Mm
5940-00-503-8133 INTERCHANGEABLE
Terminal Board
7530-00-990-88847530-00-990-8884 INTERCHANGEABLE
Folder,file
National Industries for the Blind
4820-01-293-71488884 INTERCHANGEABLE
Valve,gate
William E Williams Valve Corp
4820-01-294-48878884 ITEM 8 20IN INTERCHANGEABLE
Stem,fluid Valve
William E Williams Valve Corp
4940-01-321-7675TRAC321-2RPW-M-NSU/FW-M-LHS INTERCHANGEABLE
Cleaner,steam,pressure Jet
Insinger Machine Co
6515-01-356-17498884 INTERCHANGEABLE
Accessory Unit,autotransfusion
Covidien Sales Llc Dba Covidien Sales
Cross-Reference Index
Part NumberManufacturer
8884 ITEMS 4 AND 6 20IN PRIMARY William E Williams Valve Corp (USA)
8884 William E Williams Valve Corp (USA)
Related Parts
5935-00-162-7213INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
801102
5315-00-200-2868INTERCHANGEABLE
PIN,GROOVED,HEADLESS
8331327
5940-00-503-8133INTERCHANGEABLE
TERMINAL BOARD
7530-00-990-8884INTERCHANGEABLE
FOLDER,FILE
7530-00-990-8884
4820-01-293-7148INTERCHANGEABLE
VALVE,GATE
8884
4820-01-294-4887INTERCHANGEABLE
STEM,FLUID VALVE
8884 ITEM 8 20IN
4940-01-321-7675INTERCHANGEABLE
CLEANER,STEAM,PRESSURE JET
TRAC321-2RPW-M-NSU/FW-M-LHS
6515-01-356-1749INTERCHANGEABLE
ACCESSORY UNIT,AUTOTRANSFUSION
8884

Frequently Asked Questions

What is NSN 4820-01-294-6049?

NSN 4820-01-294-6049 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 4820-01-294-6049?

NSN 4820-01-294-6049 has 2 cross-referenced part numbers: 8884 ITEMS 4 AND 6 20IN (William E Williams Valve Corp), 8884 (William E Williams Valve Corp).

What NSN replaces 4820-01-294-6049?

There are 8 known substitutes for 4820-01-294-6049: 5935-00-162-7213, 5315-00-200-2868, 5940-00-503-8133 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8884 ITEMS 4 AND 6 20IN?

Key specifications for 8884 ITEMS 4 AND 6 20IN: Material: COPPER ALLOY 836 SEAT. 1 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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