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Technical Data Sheet
PartsTable / COMPONENT / 16703-1
16703-1 ✓ 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 HOSE ASSEMBLY,METALLIC is a the manufacturer industrial component. Key specifications include seat_angle: 37.0 DEGREES FIRST END, thread_class: 3B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END, inside_diameter: 0.188 INCHES NOMINAL IN, connection_style: SWIVEL NUT FLARE FIRST END, outside_diameter: 0.390 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 4720-00-821-5541, 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
16703-1
NSN: 4720-00-821-5541
FSC: 4720
CAGE: 16519 — SENIOR FLEXONICS INC (USA)
SPECIFICATIONS
seat_angle37.0 DEGREES FIRST END
thread_class3B FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
inside_diameter0.188 INCHES NOMINAL IN
connection_styleSWIVEL NUT FLARE FIRST END
outside_diameter0.390 INCHES NOMINAL IN
thread_directionRIGHT-HAND FIRST END
operating_pressure1800.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
burst_test_pressure7200.0 POUNDS PER SQUARE INCH LBS
nominal_thread_size0.500 INCHES FIRST END IN
end_connection_designSTRAIGHT FIRST END
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
NSN4720-00-821-5541
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 16703-1 · 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
•
NOMINAL THREAD SIZE: 0.500 INCHES FIRST END IN
•
THREAD CLASS: 3B FIRST END
•
LAYER COMPOSITION AND LOCATION: OUTER LAYER BRAIDED CORROSION RESISTANT STEEL WIRE
•
SPECIFICATION/STANDARD DATA: 36659-751352-1 MANUFACTURERS SOURCE CONTROL
•
HYDROSTATIC TEST PRESSURE: 3600.0 POUNDS PER SQUARE INCH LBS
•
SEAT ANGLE: 37.0 DEGREES FIRST END
•
OPERATING PRESSURE: 1800.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
•
BURST TEST PRESSURE: 7200.0 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
THREAD CLASS3B FIRST END
LAYER COMPOSITION AND LOCATIONOUTER LAYER BRAIDED CORROSION RESISTANT STEEL WIRE
SPECIFICATION/STANDARD DATA36659-751352-1 MANUFACTURERS SOURCE CONTROL
HYDROSTATIC TEST PRESSURE3600.0 POUNDS PER SQUARE INCH LBS
SEAT ANGLE37.0 DEGREES FIRST END
OPERATING PRESSURE1800.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
BURST TEST PRESSURE7200.0 POUNDS PER SQUARE INCH LBS
OUTER COVERING ENVIRONMENTAL PROTECTIONCORROSION RESISTANT
END CONNECTION DESIGNSTRAIGHT SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
11170PC1Interchangeable
interchangeable cross-reference
interchangeable
11170-1Interchangeable
interchangeable cross-reference
interchangeable
F11170-1Interchangeable
interchangeable cross-reference
interchangeable
11170Interchangeable
interchangeable cross-reference
interchangeable
751352-1Interchangeable
interchangeable cross-reference
interchangeable
MILL43693Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 16703-1?
16703-1 is a HOSE ASSEMBLY,METALLIC.
What parts can replace 16703-1?
There are 10 known substitutes for 16703-1: 11170PC1, 11170-1, F11170-1 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 16703-1?
16703-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-821-5541. 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