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Technical Data Sheet
PartsTable / COMPONENT / 17766-91
17766-91 ✓ 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,NONMETALLIC is a the manufacturer industrial component. Key specifications include seat_angle: 37.0 DEGREES FIRST END, temp_rating: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF, thread_class: 3B FIRST END, vacuum_in_torr: 50.8, connection_type: THREADED INTERNAL TUBE FIRST END, inside_diameter: 0.188 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 4720-00-207-2885, 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
17766-91
NSN: 4720-00-207-2885
FSC: 4720
CAGE: 77294 — PIPER INDUSTRIAL MANUFACTURING COMPANY, LLC DIV PIPER INDUSTRIAL MANUFACTURING COMPANY (USA)
SPECIFICATIONS
seat_angle37.0 DEGREES FIRST END
temp_rating-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
thread_class3B FIRST END
vacuum_in_torr50.8
connection_typeTHREADED INTERNAL TUBE FIRST END
inside_diameter0.188 INCHES NOMINAL IN
connection_styleSWIVEL NUT FLARE FIRST END
outside_diameter0.516 INCHES NOMINAL IN
thread_directionRIGHT-HAND FIRST END
features_providedREUSABLE END FITTINGS
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
burst_test_pressure12000.0 POUNDS PER SQUARE INCH LBS
NSN4720-00-207-2885
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 17766-91 · 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
•
FEATURES PROVIDED: REUSABLE END FITTINGS
•
OUTSIDE DIAMETER: 0.516 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
CONNECTION TYPE: THREADED INTERNAL TUBE FIRST END
•
MINIMUM INSIDE BENDING RADIUS: 3.000 INCHES IN
•
CONNECTION STYLE: SWIVEL NUT FLARE FIRST END
•
INSIDE DIAMETER: 0.188 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.438 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
FEATURES PROVIDEDREUSABLE END FITTINGS
OUTSIDE DIAMETER0.516 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND FIRST END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
MINIMUM INSIDE BENDING RADIUS3.000 INCHES IN
CONNECTION STYLESWIVEL NUT FLARE FIRST END
INSIDE DIAMETER0.188 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.438 INCHES FIRST END IN
TEMP RATING-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SINGLE RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
17766Interchangeable
interchangeable cross-reference
interchangeable
17766-02Interchangeable
interchangeable cross-reference
interchangeable
17766-04Interchangeable
interchangeable cross-reference
interchangeable
17766-27Interchangeable
interchangeable cross-reference
interchangeable
17766-73Interchangeable
interchangeable cross-reference
interchangeable
17766-93Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 17766-91?
17766-91 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace 17766-91?
There are 13 known substitutes for 17766-91: 17766, 17766-02, 17766-04 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 17766-91?
17766-91 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-207-2885. 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