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Technical Data Sheet
PartsTable / COMPONENT / 3780-16
3780-16 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The CROSS,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: STEEL ALLOY OVERALL, point_type: SPLIT, point_angle: 135.0 DEGREES NOMINAL, shank_style: STRAIGHT ROUND, flute_length: 1.125 INCHES NOMINAL IN, overall_length: 3.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-858-3471, 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
3780-16
NSN: 4730-00-858-3471
FSC: 4730
CAGE: 97576 — LENZ INC DBA THE LENZ COMPANY (USA)
SPECIFICATIONS
materialSTEEL ALLOY OVERALL
point_typeSPLIT
point_angle135.0 DEGREES NOMINAL
shank_styleSTRAIGHT ROUND
flute_length1.125 INCHES NOMINAL IN
flute_quantity2
overall_length3.375 INCHES NOMINAL IN
shank_diameter0.177 INCHES NOMINAL IN
special_featuresJOBBERS LG; SCREW MACHINE FLUTE LG; WIRE SIZE 16
cutting_end_styleGENERAL PURPOSE
surface_treatmentOXIDE FILM OVERALL
nominal_cutting_diameter0.1770 INCHES IN
NSN4730-00-858-3471
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3780-16 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
LEG LENGTH: 2.406 INCHES NOMINAL FIRST END IN
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
•
NOMINAL THREAD SIZE: 1.312 INCHES FIRST END IN
•
THREAD CLASS: 2A FIRST END A
•
CONNECTION STYLE: PLAIN (PIPE) SECOND END
•
THREAD SERIES DESIGNATOR: NPTF SECOND END
TECHNICAL CHARACTERISTICS (FLIS)
LEG LENGTH2.406 INCHES NOMINAL FIRST END IN
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
NOMINAL THREAD SIZE1.312 INCHES FIRST END IN
THREAD CLASS2A FIRST END A
CONNECTION STYLEPLAIN (PIPE) SECOND END
THREAD SERIES DESIGNATORNPTF SECOND END
NOMINAL THREAD SIZE1.000 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES FIRST END IN
CONNECTION STYLEFLARED (TUBE) FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
3780 16Interchangeable
interchangeable cross-reference
interchangeable
15933Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3780-16?
3780-16 is a CROSS,PIPE TO TUBE.
What parts can replace 3780-16?
There are 2 known substitutes for 3780-16: 3780 16, 15933. Substitute compatibility should be verified for your specific system.
What is the NSN for 3780-16?
3780-16 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-858-3471. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026