PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7996 2IN FIG.142-F PIECE 2Disk,valve

William E Williams Valve Corp · NSN 4820-01-270-2571 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-270-2571 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-270-2571. Primary manufacturer part number: 7996 2IN FIG.142-F PIECE 2.
Features
  • Disk,valve — FSC 4820
  • Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
  • Material: COPPER ALLOY
  • Media for Which Designed: STEAM OR WATER
  • Temp Rating: 150.0 FAHRENHEIT MINIMUM AND 406.0 FAHRENHEIT MAXIMUM DEGF
  • 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 construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-270-2571, 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 4 verified specifications, 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-270-2571
Primary Part Number7996 2IN FIG.142-F PIECE 2
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWilliam E Williams Valve Corp
StatusACTIVE
Pressure Rating150.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
MaterialCOPPER ALLOY
Media for Which DesignedSTEAM OR WATER
Temp Rating150.0 FAHRENHEIT MINIMUM AND 406.0 FAHRENHEIT MAXIMUM DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3110-00-155-733872-6970-725 INTERCHANGEABLE
Bearing,roller,cylindrical
Fairbanks Morse, Llc
5950-00-701-34727996 INTERCHANGEABLE
Transformer,power Autotransforme
Staco Energy Products Co Dba Staco Energy Products Co
5950-00-807-45499100-0084 INTERCHANGEABLE
Transformer,power
Hewlett-Packard Company Dba HP
4720-01-159-1839 INTERCHANGEABLE
Hose,preformed
5307-01-247-11277996 INTERCHANGEABLE
Stud,plain
Danuser Machine Co
4820-01-270-25187996 2IN FIG.142-F PIECE 9 INTERCHANGEABLE
Stem,fluid Valve
William E Williams Valve Corp
4820-01-270-58257996 2IN FIG.142-F PIECE 3 INTERCHANGEABLE
Seat,valve
William E Williams Valve Corp
4820-01-270-63987996 FIG.142-F 2IN. INTERCHANGEABLE
Valve,gate
William E Williams Valve Corp
4820-01-325-6995142F 4IN INTERCHANGEABLE
Stem,fluid Valve
William E Williams Valve Corp
4820-01-363-24857996 PIECE 9 2-1/2IN INTERCHANGEABLE
Stem,fluid Valve
William E Williams Valve Corp
Cross-Reference Index
Part NumberManufacturer
7996 William E Williams Valve Corp (USA)
7996 2IN FIG.142-F PIECE 2 PRIMARY William E Williams Valve Corp (USA)
Related Parts
3110-00-155-7338INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
72-6970-725
5950-00-701-3472INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
7996
5950-00-807-4549INTERCHANGEABLE
TRANSFORMER,POWER
9100-0084
4720-01-159-1839INTERCHANGEABLE
HOSE,PREFORMED
5307-01-247-1127INTERCHANGEABLE
STUD,PLAIN
7996
4820-01-270-2518INTERCHANGEABLE
STEM,FLUID VALVE
7996 2IN FIG.142-F PIECE 9
4820-01-270-5825INTERCHANGEABLE
SEAT,VALVE
7996 2IN FIG.142-F PIECE 3
4820-01-270-6398INTERCHANGEABLE
VALVE,GATE
7996 FIG.142-F 2IN.
4820-01-325-6995INTERCHANGEABLE
STEM,FLUID VALVE
142F 4IN
4820-01-363-2485INTERCHANGEABLE
STEM,FLUID VALVE
7996 PIECE 9 2-1/2IN

Frequently Asked Questions

What is NSN 4820-01-270-2571?

NSN 4820-01-270-2571 is a Disk,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 4820-01-270-2571?

NSN 4820-01-270-2571 has 2 cross-referenced part numbers: 7996 (William E Williams Valve Corp), 7996 2IN FIG.142-F PIECE 2 (William E Williams Valve Corp).

What NSN replaces 4820-01-270-2571?

There are 10 known substitutes for 4820-01-270-2571: 3110-00-155-7338, 5950-00-701-3472, 5950-00-807-4549 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7996 2IN FIG.142-F PIECE 2?

Key specifications for 7996 2IN FIG.142-F PIECE 2: Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) MINIMUM AND 225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS; Material: COPPER ALLOY; Media for Which Designed: STEAM OR WATER; Temp Rating: 150.0 FAHRENHEIT MINIMUM AND 406.0 FAHRENHEIT MAXIMUM DEGF. 4 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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