PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51515B4Tee,tube

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-01-360-7074 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-360-7074 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-360-7074. Primary manufacturer part number: MS51515B4.
Features
  • Tee,tube — FSC 4730
  • Thread Class: 2A THIRD END A
  • Seat Angle: 37.0 DEGREES FIRST END
  • Connection Type: THREADED EXTERNAL TUBE THIRD END
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Thread Series Designator: UNF FIRST END
  • Connection Type: THREADED INTERNAL PIPE SECOND END
  • Connection Style: FLARED (TUBE) FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Tee,tube, cataloged under National Stock Number 4730-01-360-7074, 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 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN4730-01-360-7074
Primary Part NumberMS51515B4
Item NameTee,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Thread Class2A THIRD END A
Seat Angle37.0 DEGREES FIRST END
Connection TypeTHREADED EXTERNAL TUBE THIRD END
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Thread Series DesignatorUNF FIRST END
Connection TypeTHREADED INTERNAL PIPE SECOND END
Connection StyleFLARED (TUBE) FIRST END
Connection StylePLAIN (PIPE) SECOND END
Nominal Thread Size0.125 INCHES SECOND END IN
Leg Length1.080 INCHES NOMINAL FIRST END IN
MaterialSTEEL OVERALL
Leg Length1.080 INCHES NOMINAL THIRD END IN
Nominal Outside Diameter Tube Accommodated0.250 INCHES THIRD END IN
Leg Length0.660 INCHES NOMINAL SECOND END IN
Seat Angle37.0 DEGREES THIRD END
Nominal Thread Size0.438 INCHES THIRD END IN
Furnished Items and Quantity2 SHORT COUPLING NUT WITH SLEEVE
Nominal Thread Size0.438 INCHES FIRST END IN
Connection StyleFLARED (TUBE) THIRD END
Thread Series DesignatorNPTF SECOND END
Thread Series DesignatorUNF THIRD END
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-00-443-4738 INTERCHANGEABLE
Tee,tube
Cross-Reference Index
Part NumberManufacturer
MS51515B4 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-18866 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-443-4738INTERCHANGEABLE
TEE,TUBE

Frequently Asked Questions

What is NSN 4730-01-360-7074?

NSN 4730-01-360-7074 is a Tee,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 4730-01-360-7074?

NSN 4730-01-360-7074 has 2 cross-referenced part numbers: MS51515B4 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-18866 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4730-01-360-7074?

There is 1 known substitute for 4730-01-360-7074: 4730-00-443-4738. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51515B4?

Key specifications for MS51515B4: Thread Class: 2A THIRD END A; Seat Angle: 37.0 DEGREES FIRST END; Connection Type: THREADED EXTERNAL TUBE THIRD END; Connection Type: THREADED EXTERNAL TUBE FIRST END. 22 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com