PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

344-07Stem,fluid Valve

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-221-1558 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-221-1558 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-221-1558. Primary manufacturer part number: 344-07.
Features
  • Stem,fluid Valve — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-221-1558, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameStem,fluid Valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersTrac Regulator Co., Inc. Dba Trac Regulator Co Inc (CAGE 55378)
Technical Specifications
ParameterValue
NSN4820-01-221-1558
Primary Part Number344-07
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
1420-00-085-8244 INTERCHANGEABLE
Pinion Assembly,chart
5895-00-630-157734407 INTERCHANGEABLE
Waveguide Assy
Frontgrade Technologies Inc.
5935-00-686-317857902 INTERCHANGEABLE
Connector,plug,electrical
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
9905-00-902-30303440-7 INTERCHANGEABLE
Numeral,sign
Brady United States
5995-01-120-1532467-147-003 INTERCHANGEABLE
Cable Assembly,radio Frequency
Parker-Hannifin Corporation Dba Pneutronics Div Fluid Systems Division
2010-01-185-517911721 INTERCHANGEABLE
Transmission,mechanical,marine
Westerbeke Corporation
5315-01-198-826757-902 INTERCHANGEABLE
Pin,quick Release
Qrp Inc
6625-01-462-86155790-2 INTERCHANGEABLE
Lead,test
Fluke Electronics Corp
6680-01-528-432557902 INTERCHANGEABLE
Indicator,liquid Quantity
Veethree Electronics & Marine, Llc Dba Veethree Electronics & Marine Llc
Cross-Reference Index
Part NumberManufacturer
579-02 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
344-07 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
1420-00-085-8244INTERCHANGEABLE
PINION ASSEMBLY,CHART
5895-00-630-1577INTERCHANGEABLE
WAVEGUIDE ASSY
34407
5935-00-686-3178INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
57902
9905-00-902-3030INTERCHANGEABLE
NUMERAL,SIGN
3440-7
5995-01-120-1532INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
467-147-003
2010-01-185-5179INTERCHANGEABLE
TRANSMISSION,MECHANICAL,MARINE
11721
5315-01-198-8267INTERCHANGEABLE
PIN,QUICK RELEASE
57-902
6625-01-462-8615INTERCHANGEABLE
LEAD,TEST
5790-2
6680-01-528-4325INTERCHANGEABLE
INDICATOR,LIQUID QUANTITY
57902

Frequently Asked Questions

What is NSN 4820-01-221-1558?

NSN 4820-01-221-1558 is a Stem,fluid Valve, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-221-1558?

NSN 4820-01-221-1558 has 2 cross-referenced part numbers: 579-02 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 344-07 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-221-1558?

There are 9 known substitutes for 4820-01-221-1558: 1420-00-085-8244, 5895-00-630-1577, 5935-00-686-3178 and 6 more. Verify interchangeability with system specifications before substitution.

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