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Technical Data Sheet
PartsTable / COMPONENT / 377-518
377-518 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The SWITCHING UNIT,POWER TRANSFER is a the manufacturer industrial component. Key specifications include phase: THREE, material: STEEL TUBING, design_form: PREBENT, wall_thickness: 0.025 INCHES NOMINAL IN, frequency_rating: 60.0 HERTZ NOMINAL, special_features: 3 AUTOMATIC BUS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-784-9826, 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
377-518
NSN: 4710-00-784-9826
FSC: 4710
CAGE: 70210 — HONEYWELL INTERNATIONAL INC. DIV AEROSPACE - TORRANCE (USA)
SPECIFICATIONS
phaseTHREE
materialSTEEL TUBING
design_formPREBENT
wall_thickness0.025 INCHES NOMINAL IN
frequency_rating60.0 HERTZ NOMINAL
special_features3 AUTOMATIC BUS
voltage_in_volts450.0
enclosure_featureDRIPPROOF
end_connection_styleUNTHREADED INTERNAL SINGLE END
switch_pole_quantity3
tube_outside_diameter1.000 INCHES NOMINAL IN
current_rating_in_amps400.0
NSN4710-00-784-9826
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 377-518 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
WALL THICKNESS: 0.025 INCHES NOMINAL IN
•
MATERIAL: STEEL TUBING
•
END CONNECTION STYLE: UNTHREADED INTERNAL SINGLE END
•
DESIGN FORM: PREBENT
•
TUBE OUTSIDE DIAMETER: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
WALL THICKNESS0.025 INCHES NOMINAL IN
MATERIALSTEEL TUBING
END CONNECTION STYLEUNTHREADED INTERNAL SINGLE END
DESIGN FORMPREBENT
TUBE OUTSIDE DIAMETER1.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
94234009A3DInterchangeable
interchangeable cross-reference
interchangeable
ABT-4A3-400DInterchangeable
interchangeable cross-reference
interchangeable
DOD-S-17773B(SH)Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 377-518?
377-518 is a SWITCHING UNIT,POWER TRANSFER.
What parts can replace 377-518?
There are 3 known substitutes for 377-518: 94234009A3D, ABT-4A3-400D, DOD-S-17773B(SH). Substitute compatibility should be verified for your specific system.
What is the NSN for 377-518?
377-518 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-784-9826. 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