PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7878 ITEM 5 5INStem,fluid Valve

William E Williams Valve Corp · NSN 4820-01-124-6782 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-124-6782 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-124-6782. Primary manufacturer part number: 7878 ITEM 5 5IN.
Features
  • Stem,fluid Valve — FSC 4820
  • Stem Actuating End Type: THREADED EXTERNALLY
  • Features Provided: RISING STEM
  • Largest Outside Diameter: 1.250 INCHES NOMINAL IN
  • Material Document and Classification: ASTM A182 GRADE F6 ASSN STD SINGLE MATERIAL RESPONSE
  • Valve Type for Which Designed: GATE
  • Valve Size for Which Designed: 5.000 INCHES IN
  • Material: STEEL CORROSION RESISTING
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-124-6782, 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 7 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-124-6782
Primary Part Number7878 ITEM 5 5IN
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWilliam E Williams Valve Corp
StatusACTIVE
Stem Actuating End TypeTHREADED EXTERNALLY
Features ProvidedRISING STEM
Largest Outside Diameter1.250 INCHES NOMINAL IN
Material Document and ClassificationASTM A182 GRADE F6 ASSN STD SINGLE MATERIAL RESPONSE
Valve Type for Which DesignedGATE
Valve Size for Which Designed5.000 INCHES IN
MaterialSTEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5325-00-276-6089 INTERCHANGEABLE
Grommet,nonmetallic
3120-00-343-25307878 INTERCHANGEABLE
Bearing,sleeve
Cooper Machinery Services Llc
5305-00-477-3268 INTERCHANGEABLE
Setscrew
5950-00-648-6167 INTERCHANGEABLE
Transformer,power
4820-01-127-25957878 NO 3 INTERCHANGEABLE
Seat,valve
William E Williams Valve Corp
4820-01-178-30907878 ITEM 5-2IN INTERCHANGEABLE
Stem,fluid Valve
William E Williams Valve Corp
4820-01-178-70237878 ITEM 3 INTERCHANGEABLE
Seat,valve
William E Williams Valve Corp
4820-01-182-08267878 ITEM 3 4IN INTERCHANGEABLE
Seat,valve
William E Williams Valve Corp
4820-01-182-16897878-6IN INTERCHANGEABLE
Valve,gate
William E Williams Valve Corp
4820-01-184-42787878 ITEM 3 3 IN INTERCHANGEABLE
Seat,valve
William E Williams Valve Corp
Cross-Reference Index
Part NumberManufacturer
7878 ITEM 5 5IN PRIMARY William E Williams Valve Corp (USA)
7878 William E Williams Valve Corp (USA)
Related Parts
5325-00-276-6089INTERCHANGEABLE
GROMMET,NONMETALLIC
3120-00-343-2530INTERCHANGEABLE
BEARING,SLEEVE
7878
5305-00-477-3268INTERCHANGEABLE
SETSCREW
5950-00-648-6167INTERCHANGEABLE
TRANSFORMER,POWER
4820-01-127-2595INTERCHANGEABLE
SEAT,VALVE
7878 NO 3
4820-01-178-3090INTERCHANGEABLE
STEM,FLUID VALVE
7878 ITEM 5-2IN
4820-01-178-7023INTERCHANGEABLE
SEAT,VALVE
7878 ITEM 3
4820-01-182-0826INTERCHANGEABLE
SEAT,VALVE
7878 ITEM 3 4IN
4820-01-182-1689INTERCHANGEABLE
VALVE,GATE
7878-6IN
4820-01-184-4278INTERCHANGEABLE
SEAT,VALVE
7878 ITEM 3 3 IN
4820-01-210-1393INTERCHANGEABLE
DISK,VALVE
7878 ITEM 2 4IN
4820-01-210-4338INTERCHANGEABLE
STEM,FLUID VALVE
7878 ITEM 5 4IN

Frequently Asked Questions

What is NSN 4820-01-124-6782?

NSN 4820-01-124-6782 is a Stem,fluid 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 4820-01-124-6782?

NSN 4820-01-124-6782 has 2 cross-referenced part numbers: 7878 ITEM 5 5IN (William E Williams Valve Corp), 7878 (William E Williams Valve Corp).

What NSN replaces 4820-01-124-6782?

There are 12 known substitutes for 4820-01-124-6782: 5325-00-276-6089, 3120-00-343-2530, 5305-00-477-3268 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7878 ITEM 5 5IN?

Key specifications for 7878 ITEM 5 5IN: Stem Actuating End Type: THREADED EXTERNALLY; Features Provided: RISING STEM; Largest Outside Diameter: 1.250 INCHES NOMINAL IN; Material Document and Classification: ASTM A182 GRADE F6 ASSN STD SINGLE MATERIAL RESPONSE. 7 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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