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PartsTable / COMPONENT / H2051B-580
H2051B-580 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The REGULATOR,COMPRESSED GAS is a the manufacturer industrial component. Key specifications include stage_type: SINGLE, usage_design: SCALE CO2, delivery_pressure_type: ADJUSTABLE, end_item_identification: 350P MODEL MIG RUNNER WELDING CART, part_name_assigned_by_controlling_agency: REG, FLOWMETER, CO2, 50PSI. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-551-6644, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
H2051B-580
NSN: 4820-01-551-6644
FSC: 4820
CAGE: 40608 — MILLER ELECTRIC MFG. CO. (USA)
SPECIFICATIONS
stage_typeSINGLE
usage_designSCALE CO2
special_featuresTUBES ARE MADE OF SHATTER-RESISTANT POLYCARBONATE RESIN AND CAN BE ROTATED TO POSITION DESIRED SCALE FOR EASY READING; 50 PSI; SENSITIVE NEEDLE VALVE FOR FINE ADJUSTMENT AND A 2 INCH (51MM) GAUGE MM
delivery_pressure_typeADJUSTABLE
end_item_identification350P MODEL MIG RUNNER WELDING CART
part_name_assigned_by_controlling_agencyREG, FLOWMETER, CO2, 50PSI
NSN4820-01-551-6644
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: H2051B-580 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STAGE TYPE: SINGLE
•
DELIVERY PRESSURE TYPE: ADJUSTABLE
TECHNICAL CHARACTERISTICS (FLIS)
STAGE TYPESINGLE
DELIVERY PRESSURE TYPEADJUSTABLE
SPECIAL FEATURES0-50 CFH AR/CO2 WITH FLOW TUBE; INAVY GUAGE,FLOWMETER; MFGR CALLS THIS ITEM REGULATOR/FLOWMETER
END ITEM IDENTIFICATION350P MODEL MIG RUNNER WELDING CART
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
210925Interchangeable
interchangeable cross-reference
interchangeable
AS954 TY2CL4STCInterchangeable
interchangeable cross-reference
interchangeable
GGG-W-636Interchangeable
interchangeable cross-reference
interchangeable
B107.6 TY1Interchangeable
interchangeable cross-reference
interchangeable
H2051B580Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H2051B-580?
H2051B-580 is a REGULATOR,COMPRESSED GAS.
What parts can replace H2051B-580?
There are 5 known substitutes for H2051B-580: 210925, AS954 TY2CL4STC, GGG-W-636 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H2051B-580?
H2051B-580 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-551-6644. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026