PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-59617Union,pipe

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 4730-00-200-0311 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-200-0311 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-200-0311. Primary manufacturer part number: A-A-59617.
Features
  • Union,pipe — FSC 4730
  • Nominal Overall Length: 3.625 INCHES IN
  • Style Designator: SCREWED
  • Thread Series Designator: NPT ALL ENDS
  • Material Document and Classification: ASTM B62 ALLOY 836 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B145 ALLOY 838 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B145 ALLOY 844 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Nondefinitive Spec/std Data: 2 TYPE AND A STYLE
  • Seat Type: BALL-CONE
  • Material: COPPER ALLOY OVERALL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Union,pipe, cataloged under National Stock Number 4730-00-200-0311, 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 Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 30 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-200-0311
Primary Part NumberA-A-59617
Item NameUnion,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusACTIVE
Nominal Overall Length3.625 INCHES IN
Style DesignatorSCREWED
Thread Series DesignatorNPT ALL ENDS
Material Document and ClassificationASTM B62 ALLOY 836 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B145 ALLOY 838 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B145 ALLOY 844 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Nondefinitive Spec/std Data2 TYPE AND A STYLE
Seat TypeBALL-CONE
MaterialCOPPER ALLOY OVERALL
Nominal Overall Length3.625 INCHES IN
Reducer TypeCONCENTRIC
Coupling Flange ShapeHEXAGON
Nominal Thread Size2.500 INCHES ALL ENDS IN
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
Operating Pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
Nominal Thread Size2.500 INCHES ALL ENDS IN
Specification/standard Data81348-WW-U-516 GOVERNMENT SPECIFICATION
Operating Pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
Seat TypeBALL-CONE
Nondefinitive Spec/std Data2 TYPE AND A STYLE
Media for Which DesignedSTEAM FIRST RESPONSE
Coupling Flange ShapeHEXAGON
MaterialCOPPER ALLOY OVERALL
Thread Series DesignatorNPT ALL ENDS
Style DesignatorSCREWED
Connection StylePLAIN (PIPE) ALL ENDS
Specification/standard Data81348-WW-U-516 GOVERNMENT SPECIFICATION
Maximum Operating Temp400.0 FAHRENHEIT SINGLE RESPONSE DEGF
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Operating Pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Material Document and ClassificationASTM B62 ALLOY 836 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B145 ALLOY 838 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B145 ALLOY 844 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-088-8389 INTERCHANGEABLE
Union,tube
4730-00-088-8952 INTERCHANGEABLE
Union,pipe
4730-00-189-2588 INTERCHANGEABLE
Union,pipe
4730-00-189-2592 INTERCHANGEABLE
Union,pipe
4730-00-189-2595 INTERCHANGEABLE
Union,pipe
4730-00-248-9348 INTERCHANGEABLE
Union,pipe
4730-00-248-9351 INTERCHANGEABLE
Union,pipe
4730-00-266-3897 INTERCHANGEABLE
Union,tube
4730-00-266-3899 INTERCHANGEABLE
Union,tube
4730-00-266-3901 INTERCHANGEABLE
Union,tube
Cross-Reference Index
Part NumberManufacturer
A-A-59617 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
WW-U-516-75 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AA59617-75 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
Related Parts
4730-00-088-8389INTERCHANGEABLE
UNION,TUBE
4730-00-088-8952INTERCHANGEABLE
UNION,PIPE
4730-00-189-2588INTERCHANGEABLE
UNION,PIPE
4730-00-189-2592INTERCHANGEABLE
UNION,PIPE
4730-00-189-2595INTERCHANGEABLE
UNION,PIPE
4730-00-248-9348INTERCHANGEABLE
UNION,PIPE
4730-00-248-9351INTERCHANGEABLE
UNION,PIPE
4730-00-266-3897INTERCHANGEABLE
UNION,TUBE
4730-00-266-3899INTERCHANGEABLE
UNION,TUBE
4730-00-266-3901INTERCHANGEABLE
UNION,TUBE
4730-00-287-0420INTERCHANGEABLE
UNION,PIPE
4730-00-287-0421INTERCHANGEABLE
UNION,PIPE

Frequently Asked Questions

What is NSN 4730-00-200-0311?

NSN 4730-00-200-0311 is a Union,pipe, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-200-0311?

NSN 4730-00-200-0311 has 3 cross-referenced part numbers: A-A-59617 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), WW-U-516-75 (Federal Specifications Promulgated by General Services Administration Washington DC), AA59617-75 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).

What NSN replaces 4730-00-200-0311?

There are 12 known substitutes for 4730-00-200-0311: 4730-00-088-8389, 4730-00-088-8952, 4730-00-189-2588 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-59617?

Key specifications for A-A-59617: Nominal Overall Length: 3.625 INCHES IN; Style Designator: SCREWED; Thread Series Designator: NPT ALL ENDS; Material Document and Classification: ASTM B62 ALLOY 836 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B145 ALLOY 838 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM B145 ALLOY 844 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 30 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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