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66787 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The HOSE ASSEMBLY,METALLIC is a the manufacturer industrial component. Key specifications include flow_angle: 45.0 DEGREES SECOND END, seat_angle: 37.0 DEGREES SECOND END, temp_rating: -54.0 CELSIUS AND 125.0 CELSIUS SINGLE RESPONSE DEGC, thread_class: 3B FIRST END, exterior_color: NATURAL, connection_type: THREADED INTERNAL TUBE SECOND 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 5330-00-171-3681, 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
66787
NSN: 5330-00-171-3681
FSC: 5330
CAGE: 08645 — BRIGGS AND STRATTON CORP (USA)
SPECIFICATIONS
flow_angle45.0 DEGREES SECOND END
seat_angle37.0 DEGREES SECOND END
temp_rating-54.0 CELSIUS AND 125.0 CELSIUS SINGLE RESPONSE DEGC
thread_class3B FIRST END
exterior_colorNATURAL
connection_typeTHREADED INTERNAL TUBE SECOND END
inside_diameter0.188 INCHES NOMINAL IN
connection_styleSWIVEL NUT FLARE FIRST END
outside_diameter0.312 INCHES NOMINAL IN
thread_directionRIGHT-HAND FIRST END
nominal_thread_size0.375 INCHES FIRST END IN
end_connection_designELBOW SECOND END
NSN5330-00-171-3681
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 66787 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: CIRCULAR
•
OUTSIDE DIAMETER: 1.688 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL IN
•
APERTURE DIAMETER: 1.062 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
MATERIAL: CORK AND LEATHER OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORCIRCULAR
OUTSIDE DIAMETER1.688 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
APERTURE DIAMETER1.062 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
MATERIALCORK AND LEATHER OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
3109241Interchangeable
interchangeable cross-reference
interchangeable
14740Interchangeable
interchangeable cross-reference
interchangeable
47235Interchangeable
interchangeable cross-reference
interchangeable
373271-1Interchangeable
interchangeable cross-reference
interchangeable
90637Interchangeable
interchangeable cross-reference
interchangeable
C589AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 66787?
66787 is a HOSE ASSEMBLY,METALLIC.
What parts can replace 66787?
There are 12 known substitutes for 66787: 3109241, 14740, 47235 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 66787?
66787 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-171-3681. 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