PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

75194AUnion,pipe

Air Products & Chemicals, Inc · NSN 4730-00-222-1866 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-222-1866 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-222-1866. Primary manufacturer part number: 75194A.
Features
  • Union,pipe — FSC 4730
  • Nominal Overall Length: 2.500 INCHES IN
  • Nominal Thread Size: 1.500 INCHES ALL ENDS IN
  • Coupling Flange Shape: HEXAGON
  • Maximum Operating Temp: 482.0 CELSIUS SINGLE RESPONSE DEGC
  • Connection Style: PLAIN (PIPE) ALL ENDS
  • Thread Series Designator: NPT ALL ENDS
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Union,pipe, cataloged under National Stock Number 4730-00-222-1866, 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 Air Products & Chemicals, Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-222-1866
Primary Part Number75194A
Item NameUnion,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAir Products & Chemicals, Inc
StatusCANCELLED
Nominal Overall Length2.500 INCHES IN
Nominal Thread Size1.500 INCHES ALL ENDS IN
Coupling Flange ShapeHEXAGON
Maximum Operating Temp482.0 CELSIUS SINGLE RESPONSE DEGC
Connection StylePLAIN (PIPE) ALL ENDS
Thread Series DesignatorNPT ALL ENDS
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Pipe Size Accommodated1.500 INCHES ALL ENDS IN
Reducer TypeCONCENTRIC
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Seat TypeBEVELED
Style DesignatorSCREWED
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
4730-00-066-1110XS1V3-4 INTERCHANGEABLE
Union,pipe
Catawissa Valve and Fittings Co
4730-00-076-8608 INTERCHANGEABLE
Union,pipe
4730-00-222-1860 INTERCHANGEABLE
Union,pipe
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
4730-00-277-5507 INTERCHANGEABLE
Union,pipe
4730-00-277-8657 INTERCHANGEABLE
Union,pipe
4730-00-973-87502244 INTERCHANGEABLE
Union,pipe
Flowserve Inc
Cross-Reference Index
Part NumberManufacturer
75194A Air Products & Chemicals, Inc (USA)
252H1-1/2IN Crane Co Div Valve Div (USA)
M18182-08-U Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-18182 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
A92789-6 Naval Air Warfare Center Aircraft Division Joint Base Jbmdl (USA)
MIL-U-18182 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
252H1 1-2 Crane Co Div Valve Div (USA)
Related Parts
4730-00-066-1110INTERCHANGEABLE
UNION,PIPE
XS1V3-4
4730-00-076-8608INTERCHANGEABLE
UNION,PIPE
4730-00-222-1860INTERCHANGEABLE
UNION,PIPE
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
4730-00-277-5507INTERCHANGEABLE
UNION,PIPE
4730-00-277-8657INTERCHANGEABLE
UNION,PIPE
4730-00-973-8750INTERCHANGEABLE
UNION,PIPE
2244
4730-01-113-4546INTERCHANGEABLE
UNION,PIPE

Frequently Asked Questions

What is NSN 4730-00-222-1866?

NSN 4730-00-222-1866 is a Union,pipe, manufactured by Air Products & Chemicals, Inc, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-222-1866?

NSN 4730-00-222-1866 has 7 cross-referenced part numbers: 75194A (Air Products & Chemicals, Inc), 252H1-1/2IN (Crane Co Div Valve Div), M18182-08-U (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-18182 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), A92789-6 (Naval Air Warfare Center Aircraft Division Joint Base Jbmdl) and 2 more.

What NSN replaces 4730-00-222-1866?

There are 11 known substitutes for 4730-00-222-1866: 4730-00-066-1110, 4730-00-076-8608, 4730-00-222-1860 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 75194A?

Key specifications for 75194A: Nominal Overall Length: 2.500 INCHES IN; Nominal Thread Size: 1.500 INCHES ALL ENDS IN; Coupling Flange Shape: HEXAGON; Maximum Operating Temp: 482.0 CELSIUS SINGLE RESPONSE DEGC. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-222-1866 still in active supply?

NSN 4730-00-222-1866 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.
PartsTable Design LLC · partstable.com