PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5720 1-4Union,pipe

The Walworth Company · NSN 4730-00-222-1860 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-222-1860 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-222-1860. Primary manufacturer part number: 5720 1-4.
Features
  • Union,pipe — FSC 4730
  • Specification/standard Data: 81349-MIL-U-18182C GOVERNMENT SPECIFICATION
  • Coupling Flange Shape: HEXAGON
  • Seat Type: BEVELED
  • Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE
  • Nominal Thread Size: 0.250 INCHES ALL ENDS IN
  • Nondefinitive Spec/std Data: 2 CLASS AND A STYLE
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Union,pipe, cataloged under National Stock Number 4730-00-222-1860, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is The Walworth Company. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-222-1860
Primary Part Number5720 1-4
Item NameUnion,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerThe Walworth Company
StatusCANCELLED
Specification/standard Data81349-MIL-U-18182C GOVERNMENT SPECIFICATION
Coupling Flange ShapeHEXAGON
Seat TypeBEVELED
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
Nominal Thread Size0.250 INCHES ALL ENDS IN
Nondefinitive Spec/std Data2 CLASS AND A STYLE
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
MaterialSTEEL OVERALL
Reducer TypeCONCENTRIC
Nominal Pipe Size Accommodated0.250 INCHES ALL ENDS IN
Connection StylePLAIN (PIPE) ALL ENDS
Nominal Overall Length1.312 INCHES IN
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Style DesignatorSCREWED
Thread Series DesignatorNPT ALL ENDS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2990-00-057-145310514-N INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
4730-00-066-1110XS1V3-4 INTERCHANGEABLE
Union,pipe
Catawissa Valve and Fittings Co
4730-00-076-8608 INTERCHANGEABLE
Union,pipe
3110-00-100-0498121527 INTERCHANGEABLE
Cup,tapered Roller Bearing
General Motors Llc Dba General Motors Llc
4730-00-222-1862 INTERCHANGEABLE
Union,pipe
4730-00-222-1863252H3-4 INTERCHANGEABLE
Union,pipe
Crane Co Div Valve Div
4730-00-222-1864 INTERCHANGEABLE
Union,pipe
4730-00-222-1865 INTERCHANGEABLE
Union,pipe
4730-00-222-1866 INTERCHANGEABLE
Union,pipe
3030-00-264-305815630 INTERCHANGEABLE
Belt,v
Carlisle Power Transmission Products Inc
Cross-Reference Index
Part NumberManufacturer
5720 1-4 The Walworth Company (USA)
5720 The Walworth Company (USA)
3250X4 Eaton Corp Hydraulics Div (USA)
M18182-24U Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3250X4 Dana Corp Weatherhead Div (USA)
MIL-U-18182 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2H1-4 Crane Co Div Valve Div (USA)
Related Parts
2990-00-057-1453INTERCHANGEABLE
MUFFLER,EXHAUST
10514-N
4730-00-066-1110INTERCHANGEABLE
UNION,PIPE
XS1V3-4
4730-00-076-8608INTERCHANGEABLE
UNION,PIPE
3110-00-100-0498INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
121527
4730-00-222-1862INTERCHANGEABLE
UNION,PIPE
4730-00-222-1863INTERCHANGEABLE
UNION,PIPE
252H3-4
4730-00-222-1864INTERCHANGEABLE
UNION,PIPE
4730-00-222-1865INTERCHANGEABLE
UNION,PIPE
4730-00-222-1866INTERCHANGEABLE
UNION,PIPE
3030-00-264-3058INTERCHANGEABLE
BELT,V
15630
4730-00-277-5507INTERCHANGEABLE
UNION,PIPE
4730-00-277-8657INTERCHANGEABLE
UNION,PIPE

Frequently Asked Questions

What is NSN 4730-00-222-1860?

NSN 4730-00-222-1860 is a Union,pipe, manufactured by The Walworth Company, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-222-1860?

NSN 4730-00-222-1860 has 7 cross-referenced part numbers: 5720 1-4 (The Walworth Company), 5720 (The Walworth Company), 3250X4 (Eaton Corp Hydraulics Div), M18182-24U (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 3250X4 (Dana Corp Weatherhead Div) and 2 more.

What NSN replaces 4730-00-222-1860?

There are 12 known substitutes for 4730-00-222-1860: 2990-00-057-1453, 4730-00-066-1110, 4730-00-076-8608 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5720 1-4?

Key specifications for 5720 1-4: Specification/standard Data: 81349-MIL-U-18182C GOVERNMENT SPECIFICATION; Coupling Flange Shape: HEXAGON; Seat Type: BEVELED; Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-222-1860 still in active supply?

NSN 4730-00-222-1860 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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