PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

504312Elbow,pipe to Tube

U S Army Tank Automotive Command Amsta-Im-Mm · NSN 4730-00-943-8051 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-943-8051 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-943-8051. Primary manufacturer part number: 504312.
Features
  • Elbow,pipe to Tube — FSC 4730
  • Thread Series Designator: UNS FIRST END
  • Nominal Thread Size: 0.531 INCHES FIRST END IN
  • Material: COPPER ALLOY B6 OVERALL
  • Connection Type: THREADED EXTERNAL PIPE SECOND END
  • Leg Length: 0.813 INCHES NOMINAL FIRST END IN
  • Nominal Pipe Size Accommodated: 0.125 INCHES SECOND END IN
  • Thread Quantity Per Inch: 24 FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy B6 Overall construction
General Description

The Elbow,pipe to Tube, cataloged under National Stock Number 4730-00-943-8051, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-943-8051
Primary Part Number504312
Item NameElbow,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerU S Army Tank Automotive Command Amsta-Im-Mm
StatusCANCELLED
Thread Series DesignatorUNS FIRST END
Nominal Thread Size0.531 INCHES FIRST END IN
MaterialCOPPER ALLOY B6 OVERALL
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Leg Length0.813 INCHES NOMINAL FIRST END IN
Nominal Pipe Size Accommodated0.125 INCHES SECOND END IN
Thread Quantity Per Inch24 FIRST END
Thread Class2A FIRST END A
Connection StyleFLARELESS (TUBE) FIRST END
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Connection StylePLAIN (PIPE) SECOND END
Leg Length0.875 INCHES NOMINAL SECOND END IN
Furnished Items and Quantity1 FERRULE SLEEVE AND 1 LONG COUPLING NUT
Flow Angle90.0 DEGREES
Nominal Thread Size0.125 INCHES SECOND END IN
Seat Angle20.0 DEGREES FIRST END
Thread Series DesignatorNPT SECOND END
Material Document and ClassificationQQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Outside Diameter Tube Accommodated0.375 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
4730-00-287-16046-2 120202BA INTERCHANGEABLE
Elbow,pipe to Tube
Sae International Dba Sae International
1660-00-535-33285043-12 INTERCHANGEABLE
Valve Assy,relief,o
Avox Systems Inc Dba Avox Systems Inc
5940-00-983-6087 INTERCHANGEABLE
Terminal Board
1650-01-234-8479570861 INTERCHANGEABLE
Adapter,hydraulic Pump
Eaton Aerospace, Llc Dba Jackson South
5995-01-374-90065043-1-2 INTERCHANGEABLE
Cable Assembly,radio Frequency
Avtechtyee Inc Dba Avtech
Cross-Reference Index
Part NumberManufacturer
504312 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
MS39182-2 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
469-F-06X02 Imperial (USA)
570861 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
4730-00-287-1604INTERCHANGEABLE
ELBOW,PIPE TO TUBE
6-2 120202BA
1660-00-535-3328INTERCHANGEABLE
VALVE ASSY,RELIEF,O
5043-12
5940-00-983-6087INTERCHANGEABLE
TERMINAL BOARD
1650-01-234-8479INTERCHANGEABLE
ADAPTER,HYDRAULIC PUMP
570861
5995-01-374-9006INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
5043-1-2

Frequently Asked Questions

What is NSN 4730-00-943-8051?

NSN 4730-00-943-8051 is a Elbow,pipe to Tube, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-943-8051?

NSN 4730-00-943-8051 has 4 cross-referenced part numbers: 504312 (U S Army Tank Automotive Command Amsta-Im-Mm), MS39182-2 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 469-F-06X02 (Imperial), 570861 (U S Army Tank Automotive Command Amsta-Im-Mm).

What NSN replaces 4730-00-943-8051?

There are 5 known substitutes for 4730-00-943-8051: 4730-00-287-1604, 1660-00-535-3328, 5940-00-983-6087 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 504312?

Key specifications for 504312: Thread Series Designator: UNS FIRST END; Nominal Thread Size: 0.531 INCHES FIRST END IN; Material: COPPER ALLOY B6 OVERALL; Connection Type: THREADED EXTERNAL PIPE SECOND END. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-943-8051 still in active supply?

NSN 4730-00-943-8051 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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