PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2503-6-8Elbow,pipe to Tube

Air-Way Manufacturing Company · NSN 4730-01-304-2801 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-304-2801 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-304-2801. Primary manufacturer part number: 2503-6-8.
Features
  • Elbow,pipe to Tube — FSC 4730
  • Surface Treatment: CADMIUM OVERALL
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Seat Angle: 37.0 DEGREES FIRST END
  • Nominal Outside Diameter Tube Accommodated: 0.375 INCHES FIRST END IN
  • Nominal Thread Size: 0.500 INCHES SECOND END IN
  • Material: STEEL OVERALL
  • Thread Quantity Per Inch: 12 FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Elbow,pipe to Tube, cataloged under National Stock Number 4730-01-304-2801, 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-Way Manufacturing Company. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-304-2801
Primary Part Number2503-6-8
Item NameElbow,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAir-Way Manufacturing Company
StatusACTIVE
Surface TreatmentCADMIUM OVERALL
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Seat Angle37.0 DEGREES FIRST END
Nominal Outside Diameter Tube Accommodated0.375 INCHES FIRST END IN
Nominal Thread Size0.500 INCHES SECOND END IN
MaterialSTEEL OVERALL
Thread Quantity Per Inch12 FIRST END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Thread Series DesignatorUNIFIED NATIONAL JOINT (UNJ) FIRST END
Thread Series DesignatorNPT SECOND END
Flow Angle45.0 DEGREES
Connection StylePLAIN (PIPE) SECOND END
Nominal Thread Size0.625 INCHES FIRST END IN
Thread Class3A FIRST END A
Connection StyleFLARED (TUBE) FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-00-225-06998-6C50X-S INTERCHANGEABLE
Elbow,tube to Boss
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
Cross-Reference Index
Part NumberManufacturer
2503-6-8 PRIMARY Air-Way Manufacturing Company (USA)
Related Parts
4730-00-225-0699INTERCHANGEABLE
ELBOW,TUBE TO BOSS
8-6C50X-S

Frequently Asked Questions

What is NSN 4730-01-304-2801?

NSN 4730-01-304-2801 is a Elbow,pipe to Tube, manufactured by Air-Way Manufacturing Company, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-304-2801?

NSN 4730-01-304-2801 has 1 cross-referenced part number: 2503-6-8 (Air-Way Manufacturing Company).

What NSN replaces 4730-01-304-2801?

There is 1 known substitute for 4730-01-304-2801: 4730-00-225-0699. Verify interchangeability with system specifications before substitution.

What are the specifications of 2503-6-8?

Key specifications for 2503-6-8: Surface Treatment: CADMIUM OVERALL; Connection Type: THREADED EXTERNAL TUBE FIRST END; Seat Angle: 37.0 DEGREES FIRST END; Nominal Outside Diameter Tube Accommodated: 0.375 INCHES FIRST END IN. 15 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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