PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H3339MFloat,valve

Opw Fueling Components Inc. Div Opw Fueling Components · NSN 4820-00-030-2368 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-030-2368 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-030-2368. Primary manufacturer part number: H3339M.
Features
  • Float,valve — FSC 4820
  • Material: COPPER
  • Thread Size and Series/type Designator: 1/4-20 UNIFIED NATIONAL COARSE (UNC)
  • Quantity: 2
  • Thread Location: EXTERNAL
  • Overall Diameter: 4.875 INCHES NOMINAL IN
  • System for Which Designed: CLOSED
  • 2 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper construction
General Description

The Float,valve, cataloged under National Stock Number 4820-00-030-2368, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Opw Fueling Components Inc. Div Opw Fueling Components. Government technical data includes 6 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-030-2368
Primary Part NumberH3339M
Item NameFloat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerOpw Fueling Components Inc. Div Opw Fueling Components
StatusCANCELLED
MaterialCOPPER
Thread Size and Series/type Designator1/4-20 UNIFIED NATIONAL COARSE (UNC)
Quantity2
Thread LocationEXTERNAL
Overall Diameter4.875 INCHES NOMINAL IN
System for Which DesignedCLOSED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
6680-00-532-892540220065 INTERCHANGEABLE
Indicator,liquid Quantity
Teleflex Inc Electrical Systems Div
3110-00-554-2906 INTERCHANGEABLE
Bearing,ball,annular
4940-01-299-9180301-H INTERCHANGEABLE
Cleaner,steam,pressure Jet,trail
Sioux Corporation Dba Sioux Corp
Cross-Reference Index
Part NumberManufacturer
301H Opw Fueling Components Inc. Div Opw Fueling Components (USA)
H3339M PRIMARY Opw Fueling Components Inc. Div Opw Fueling Components (USA)
Related Parts
6680-00-532-8925INTERCHANGEABLE
INDICATOR,LIQUID QUANTITY
40220065
3110-00-554-2906INTERCHANGEABLE
BEARING,BALL,ANNULAR
4940-01-299-9180INTERCHANGEABLE
CLEANER,STEAM,PRESSURE JET,TRAIL
301-H

Frequently Asked Questions

What is NSN 4820-00-030-2368?

NSN 4820-00-030-2368 is a Float,valve, manufactured by Opw Fueling Components Inc. Div Opw Fueling Components, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-030-2368?

NSN 4820-00-030-2368 has 2 cross-referenced part numbers: 301H (Opw Fueling Components Inc. Div Opw Fueling Components), H3339M (Opw Fueling Components Inc. Div Opw Fueling Components).

What NSN replaces 4820-00-030-2368?

There are 3 known substitutes for 4820-00-030-2368: 6680-00-532-8925, 3110-00-554-2906, 4940-01-299-9180. Verify interchangeability with system specifications before substitution.

What are the specifications of H3339M?

Key specifications for H3339M: Material: COPPER; Thread Size and Series/type Designator: 1/4-20 UNIFIED NATIONAL COARSE (UNC); Quantity: 2; Thread Location: EXTERNAL. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-030-2368 still in active supply?

NSN 4820-00-030-2368 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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