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Technical Data Sheet
PartsTable / COMPONENT / D66943
D66943 ✓ 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,NONMETALLIC is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE CLASS Q TUBE, temp_rating: -65.0 FAHRENHEIT AND 350.0 FAHRENHEIT SINGLE RESPONSE DEGF, inside_diameter: 0.625 INCHES NOMINAL IN, outside_diameter: 1.020 INCHES NOMINAL IN, operating_pressure: 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, burst_test_pressure: 340.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-088-4574, 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
D66943
NSN: 4720-00-088-4574
FSC: 4720
CAGE: 59690 — KOEHRING CO LORAIN DIV (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q TUBE
temp_rating-65.0 FAHRENHEIT AND 350.0 FAHRENHEIT SINGLE RESPONSE DEGF
inside_diameter0.625 INCHES NOMINAL IN
outside_diameter1.020 INCHES NOMINAL IN
operating_pressure50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
burst_test_pressure340.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
inside_surface_conditionSMOOTH
cross-sectional_shape_styleROUND
measuring_method_and_length46.000 INCHES NOMINAL OVERALL IN
layer_composition_and_location1ST LAYER WOVEN POLYESTER FIBER CORD AND 2ND LAYER WOVEN POLYESTER FIBER CORD AND 3RD LAYER WOVEN POLYESTER FIBER CORD AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
outer_covering_environmental_protectionETHYLENE GLYCOL RESISTANT AND STEAM RESISTANT AND AGE RESISTANT AND MILDEW RESISTANT
NSN4720-00-088-4574
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: D66943 · 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
•
BURST TEST PRESSURE: 340.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
•
OUTSIDE DIAMETER: 1.020 INCHES NOMINAL IN
•
TEMP RATING: -65.0 FAHRENHEIT AND 350.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
MEASURING METHOD AND LENGTH: 46.000 INCHES NOMINAL OVERALL IN
•
INSIDE SURFACE CONDITION: SMOOTH
•
OUTER COVERING ENVIRONMENTAL PROTECTION: ETHYLENE GLYCOL RESISTANT AND STEAM RESISTANT AND AGE RESISTANT AND MILDEW RESISTANT
•
OPERATING PRESSURE: 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MATERIAL: RUBBER SILICONE CLASS Q TUBE
TECHNICAL CHARACTERISTICS (FLIS)
BURST TEST PRESSURE340.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
OUTSIDE DIAMETER1.020 INCHES NOMINAL IN
TEMP RATING-65.0 FAHRENHEIT AND 350.0 FAHRENHEIT SINGLE RESPONSE DEGF
MEASURING METHOD AND LENGTH46.000 INCHES NOMINAL OVERALL IN
INSIDE SURFACE CONDITIONSMOOTH
OUTER COVERING ENVIRONMENTAL PROTECTIONETHYLENE GLYCOL RESISTANT AND STEAM RESISTANT AND AGE RESISTANT AND MILDEW RESISTANT
OPERATING PRESSURE50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALRUBBER SILICONE CLASS Q TUBE
LAYER COMPOSITION AND LOCATION1ST LAYER WOVEN POLYESTER FIBER CORD AND 2ND LAYER WOVEN POLYESTER FIBER CORD AND 3RD LAYER WOVEN POLYESTER FIBER CORD AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
CROSS-SECTIONAL SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
93-4-16-164 DEInterchangeable
interchangeable cross-reference
interchangeable
124359Interchangeable
interchangeable cross-reference
interchangeable
424410Interchangeable
interchangeable cross-reference
interchangeable
J20R1 CLASS B 5/8 IN DIInterchangeable
Same NIIN cross-reference
interchangeable
J20SAE20R1CLASSSBInterchangeable
Same NIIN cross-reference
interchangeable
J20R1-B-16X046Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D66943?
D66943 is a HOSE,NONMETALLIC.
What parts can replace D66943?
There are 7 known substitutes for D66943: 93-4-16-164 DE, 124359, 424410 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D66943?
D66943 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-088-4574. 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