PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51508B8ZElbow,pipe to Tube

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-01-494-2255 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-494-2255 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-494-2255. Primary manufacturer part number: MS51508B8Z.
Features
  • Elbow,pipe to Tube — FSC 4730
  • Nominal Thread Size: 0.750 INCHES FIRST END IN
  • Connection Type: THREADED EXTERNAL PIPE SECOND END
  • Connection Style: SWIVEL, PLAIN (TUBE) FIRST END
  • Thread Series Designator: NPTF SECOND END
  • Nominal Thread Size: 0.375 INCHES SECOND END IN
  • Furnished Items and Quantity: 1 NUT WITH SLEEVE
  • Thread Class: 2A FIRST END A
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 4730-01-494-2255, 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 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-494-2255
Primary Part NumberMS51508B8Z
Item NameElbow,pipe to Tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Nominal Thread Size0.750 INCHES FIRST END IN
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Connection StyleSWIVEL, PLAIN (TUBE) FIRST END
Thread Series DesignatorNPTF SECOND END
Nominal Thread Size0.375 INCHES SECOND END IN
Furnished Items and Quantity1 NUT WITH SLEEVE
Thread Class2A FIRST END A
MaterialSTEEL OVERALL
Flow Angle45.0 DEGREES
Thread Quantity Per Inch16 FIRST END
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Thread Tolerance Class2A EXTERNAL FIRST END A
Surface TreatmentZINC OVERALL
Connection StyleSWIVEL, PLAIN (PIPE) SECOND END
Thread Series DesignatorUNF FIRST END
Nominal Outside Diameter Tube Accommodated0.500 INCHES ALL ENDS IN
Leg Length0.950 INCHES MINIMUM AND 1.010 INCHES MAXIMUM SECOND END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4730-00-995-1568 INTERCHANGEABLE
Elbow,pipe to Tube
4730-01-494-2257 INTERCHANGEABLE
Elbow,pipe to Tube
Cross-Reference Index
Part NumberManufacturer
MS51508B8Z Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS51508 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-995-1568INTERCHANGEABLE
ELBOW,PIPE TO TUBE
4730-01-494-2257INTERCHANGEABLE
ELBOW,PIPE TO TUBE

Frequently Asked Questions

What is NSN 4730-01-494-2255?

NSN 4730-01-494-2255 is a Elbow,pipe to Tube, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-494-2255?

NSN 4730-01-494-2255 has 2 cross-referenced part numbers: MS51508B8Z (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS51508 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4730-01-494-2255?

There are 2 known substitutes for 4730-01-494-2255: 4730-00-995-1568, 4730-01-494-2257. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51508B8Z?

Key specifications for MS51508B8Z: Nominal Thread Size: 0.750 INCHES FIRST END IN; Connection Type: THREADED EXTERNAL PIPE SECOND END; Connection Style: SWIVEL, PLAIN (TUBE) FIRST END; Thread Series Designator: NPTF SECOND END. 18 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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