PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

554(1-1/2INCH)Union,pipe

Itt Grinnell Corp · NSN 4730-00-189-2624 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-189-2624 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-189-2624. Primary manufacturer part number: 554(1-1/2INCH).
Features
  • Union,pipe — FSC 4730
  • Seat Type: GROUND-JOINT
  • Material Document and Classification: ASTMA197 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OVERALL
  • Material: IRON AND STEEL OVERALL
  • Operating Pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Style Designator: SCREWED
  • Nominal Thread Size: 1.500 INCHES ALL ENDS IN
  • Material Document and Classification: ASTMA197 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OVERALL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Iron and Steel Overall construction
General Description

The Union,pipe, cataloged under National Stock Number 4730-00-189-2624, 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 Itt Grinnell Corp. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-189-2624
Primary Part Number554(1-1/2INCH)
Item NameUnion,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerItt Grinnell Corp
StatusCANCELLED
Seat TypeGROUND-JOINT
Material Document and ClassificationASTMA197 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OVERALL
MaterialIRON AND STEEL OVERALL
Operating Pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Style DesignatorSCREWED
Nominal Thread Size1.500 INCHES ALL ENDS IN
Material Document and ClassificationASTMA197 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OVERALL
Reducer TypeCONCENTRIC
Nominal Thread Size1.500 INCHES ALL ENDS IN
Coupling Flange ShapeHEXAGON
Seat TypeGROUND-JOINT
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Thread Series DesignatorNPT ALL ENDS
Maximum Operating Temp218.0 CELSIUS SINGLE RESPONSE DEGC
Connection StylePLAIN (PIPE) ALL ENDS
Thread Series DesignatorNPT ALL ENDS
MaterialIRON AND STEEL OVERALL
Coupling Flange ShapeHEXAGON
Nominal Overall Length2.780 INCHES IN
Style DesignatorSCREWED
Nominal Overall Length2.780 INCHES IN
Operating Pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5955-00-179-3763162-1300 INTERCHANGEABLE
Oscillator,crystal Controlled
L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
4010-01-246-20661621300 INTERCHANGEABLE
Chain,weldless
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5342-01-287-65061621300 INTERCHANGEABLE
Hinge,special
Oshkosh Defense Llc
6230-01-435-86961621300 INTERCHANGEABLE
Guard,lamp
Phoenix Products Llc Dba Phoenix Lighting Products Llc
Cross-Reference Index
Part NumberManufacturer
554(1-1/2INCH) Itt Grinnell Corp (USA)
WWU531-17TD Federal Specifications Promulgated by General Services Administration Washington DC (USA)
WWU531-28TA Federal Specifications Promulgated by General Services Administration Washington DC (USA)
43037-022-00246 Navy, United States Department of the Dba Space & Naval Warfare Systems Center, Atlantic (USA)
519 Crane Co Div Valve Div (USA)
ASME B16.39 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
1621-300 Flaton Machine Works Inc. (USA)
Related Parts
5955-00-179-3763INTERCHANGEABLE
OSCILLATOR,CRYSTAL CONTROLLED
162-1300
4010-01-246-2066INTERCHANGEABLE
CHAIN,WELDLESS
1621300
5342-01-287-6506INTERCHANGEABLE
HINGE,SPECIAL
1621300
6230-01-435-8696INTERCHANGEABLE
GUARD,LAMP
1621300

Frequently Asked Questions

What is NSN 4730-00-189-2624?

NSN 4730-00-189-2624 is a Union,pipe, manufactured by Itt Grinnell Corp, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-189-2624?

NSN 4730-00-189-2624 has 7 cross-referenced part numbers: 554(1-1/2INCH) (Itt Grinnell Corp), WWU531-17TD (Federal Specifications Promulgated by General Services Administration Washington DC), WWU531-28TA (Federal Specifications Promulgated by General Services Administration Washington DC), 43037-022-00246 (Navy, United States Department of the Dba Space & Naval Warfare Systems Center, Atlantic), 519 (Crane Co Div Valve Div) and 2 more.

What NSN replaces 4730-00-189-2624?

There are 4 known substitutes for 4730-00-189-2624: 5955-00-179-3763, 4010-01-246-2066, 5342-01-287-6506 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 554(1-1/2INCH)?

Key specifications for 554(1-1/2INCH): Seat Type: GROUND-JOINT; Material Document and Classification: ASTMA197 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OVERALL; Material: IRON AND STEEL OVERALL; Operating Pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-189-2624 still in active supply?

NSN 4730-00-189-2624 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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