PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H2051B-580Regulator,compressed Gas

Miller Electric Mfg. Llc · NSN 4820-01-551-6644 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-551-6644 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-551-6644. Primary manufacturer part number: H2051B-580.
Features
  • Regulator,compressed Gas — FSC 4820
  • Stage Type: SINGLE
  • Delivery Pressure Type: ADJUSTABLE
  • 3 verified cross-references
  • Primary manufacturer: Miller Electric Mfg. Llc
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Regulator,compressed Gas, cataloged under National Stock Number 4820-01-551-6644, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Miller Electric Mfg. Llc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-551-6644
Primary Part NumberH2051B-580
Item NameRegulator,compressed Gas
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMiller Electric Mfg. Llc
StatusACTIVE
Stage TypeSINGLE
Delivery Pressure TypeADJUSTABLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2810-00-031-6344210925 INTERCHANGEABLE
Plug,crankshaft Oil
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5120-00-228-9517 INTERCHANGEABLE
Wrench,box and Open End,combinat
5905-01-114-3369 INTERCHANGEABLE
Resistor,fixed,film
6680-01-631-1434H2051B580 INTERCHANGEABLE
Meter Kit,flow Rate Indicating
Miller Electric Mfg. Llc
Cross-Reference Index
Part NumberManufacturer
210925 Miller Electric Mfg. Co. (USA)
H2051B-580 Miller Electric Mfg. Co. (USA)
H2051B-580 PRIMARY Miller Electric Mfg. Llc (USA)
Related Parts
2810-00-031-6344INTERCHANGEABLE
PLUG,CRANKSHAFT OIL
210925
5120-00-228-9517INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
5905-01-114-3369INTERCHANGEABLE
RESISTOR,FIXED,FILM
6680-01-631-1434INTERCHANGEABLE
METER KIT,FLOW RATE INDICATING
H2051B580

Frequently Asked Questions

What is NSN 4820-01-551-6644?

NSN 4820-01-551-6644 is a Regulator,compressed Gas, manufactured by Miller Electric Mfg. Llc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-551-6644?

NSN 4820-01-551-6644 has 3 cross-referenced part numbers: 210925 (Miller Electric Mfg. Co.), H2051B-580 (Miller Electric Mfg. Co.), H2051B-580 (Miller Electric Mfg. Llc).

What NSN replaces 4820-01-551-6644?

There are 4 known substitutes for 4820-01-551-6644: 2810-00-031-6344, 5120-00-228-9517, 5905-01-114-3369 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of H2051B-580?

Key specifications for H2051B-580: Stage Type: SINGLE; Delivery Pressure Type: ADJUSTABLE; Special Features: 0-50 CFH AR/CO2 WITH FLOW TUBE; INAVY GUAGE,FLOWMETER; MFGR CALLS THIS ITEM REGULATOR/FLOWMETER; End Item Identification: 350P MODEL MIG RUNNER WELDING CART. 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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