PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

915-255Stem,fluid Valve

Columbus Jack Corporation Div Columbus Jack · NSN 4820-00-944-7921 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-944-7921 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-944-7921. Primary manufacturer part number: 915-255.
Features
  • Stem,fluid Valve — FSC 4820
  • Material: STEEL
  • Valve Type for Which Designed: RELIEF
  • Largest Outside Diameter: 0.625 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Columbus Jack Corporation Div Columbus Jack
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel construction
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-00-944-7921, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Columbus Jack Corporation Div Columbus Jack. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-944-7921
Primary Part Number915-255
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerColumbus Jack Corporation Div Columbus Jack
StatusACTIVE
MaterialSTEEL
Valve Type for Which DesignedRELIEF
Largest Outside Diameter0.625 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3040-00-740-9094 INTERCHANGEABLE
Lever,remote Control
Cross-Reference Index
Part NumberManufacturer
915-255 Age Logistics Corporation (USA)
915-255 PRIMARY Columbus Jack Corporation Div Columbus Jack (USA)
Related Parts
3040-00-740-9094INTERCHANGEABLE
LEVER,REMOTE CONTROL

Frequently Asked Questions

What is NSN 4820-00-944-7921?

NSN 4820-00-944-7921 is a Stem,fluid Valve, manufactured by Columbus Jack Corporation Div Columbus Jack, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-944-7921?

NSN 4820-00-944-7921 has 2 cross-referenced part numbers: 915-255 (Age Logistics Corporation), 915-255 (Columbus Jack Corporation Div Columbus Jack).

What NSN replaces 4820-00-944-7921?

There is 1 known substitute for 4820-00-944-7921: 3040-00-740-9094. Verify interchangeability with system specifications before substitution.

What are the specifications of 915-255?

Key specifications for 915-255: Overall Length: 4.125 INCHES NOMINAL IN; Material: STEEL; Valve Type for Which Designed: RELIEF; Largest Outside Diameter: 0.625 INCHES NOMINAL IN. 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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