Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW
The LOCKNUT,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: STEEL SINGLE END, design_form: PREBENT, thread_class: 3B SINGLE END, wall_thickness: 0.020 INCHES NOMINAL IN, thread_direction: RIGHT-HAND SINGLE END, seat_angle_in_deg: 33.0 SINGLE END. This product is currently in active production with full OEM support.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-01-142-1798, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
WHERE IT FITS
31-4396-1
NSN:4710-01-142-1798 FSC:4710 CAGE:82918 — THE BOEING COMPANY DIV LEGACY WICHITA (USA)
SPECIFICATIONS
material
STEEL SINGLE END
design_form
PREBENT
thread_class
3B SINGLE END
wall_thickness
0.020 INCHES NOMINAL IN
thread_direction
RIGHT-HAND SINGLE END
seat_angle_in_deg
33.0 SINGLE END
mating_end_quantity
2 SINGLE END
nominal_thread_size
0.438 INCHES SINGLE END IN
end_connection_style
SWIVEL NUT WITH COMPRESSION SLEEVE SINGLE END
tube_outside_diameter
0.250 INCHES NOMINAL IN
end_connection_spec/std
ANA,AN818,PART NO. AN818-4. AND MILMS20819,PART NO. MS20819-4
thread_series_designator
UNIFIED NATIONAL JOINT FINE (UNJF) SINGLE END
NSN
4710-01-142-1798
COMPONENT DIAGRAM
KEY FEATURES
•
DESIGN FORM: PREBENT
•
END CONNECTION STYLE: SWIVEL NUT WITH COMPRESSION SLEEVE SINGLE END
•
MATING END QUANTITY: 2 SINGLE END
•
THREAD DIRECTION: RIGHT-HAND SINGLE END
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF) SINGLE END
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-T-6845 MIL SPEC SINGLE MATERIAL RESPONSE TUBING
•
MATERIAL: STEEL COMP 304 TUBING
•
SEAT ANGLE IN DEG: 33.0 SINGLE END
TECHNICAL CHARACTERISTICS (FLIS)
DESIGN FORM
PREBENT
END CONNECTION STYLE
SWIVEL NUT WITH COMPRESSION SLEEVE SINGLE END
MATING END QUANTITY
2 SINGLE END
THREAD DIRECTION
RIGHT-HAND SINGLE END
THREAD SERIES DESIGNATOR
UNIFIED NATIONAL JOINT FINE (UNJF) SINGLE END
MATERIAL DOCUMENT AND CLASSIFICATION
MIL-T-6845 MIL SPEC SINGLE MATERIAL RESPONSE TUBING
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FREQUENTLY ASKED QUESTIONS
What is 31-4396-1?
31-4396-1 is a LOCKNUT,TUBE FITTING.
What parts can replace 31-4396-1?
There are 4 known substitutes for 31-4396-1: 314396, 34, PL8666 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 31-4396-1?
31-4396-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-01-142-1798. This indicates validated use in U.S. government and defense supply chains.
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