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Technical Data Sheet
PartsTable / COMPONENT / FLX5501-26
FLX5501-26 ✓ 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: -54.0 CELSIUS AND 177.0 CELSIUS SINGLE RESPONSE DEGC, exterior_color: GREEN, inside_diameter: 1.594 INCHES MINIMUM AND 1.641 INCHES MAXIMUM IN, outside_diameter: 2.070 INCHES MINIMUM AND 2.132 INCHES MAXIMUM IN, special_features: INNER TUBE AND OUTER COVER MATL SILICONE RUBBER ZZ-R-765,CLASS 2. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-259-7057, 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
FLX5501-26
NSN: 4720-01-259-7057
FSC: 4720
CAGE: 16632 — FLEXFAB LLC (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q TUBE
temp_rating-54.0 CELSIUS AND 177.0 CELSIUS SINGLE RESPONSE DEGC
exterior_colorGREEN
inside_diameter1.594 INCHES MINIMUM AND 1.641 INCHES MAXIMUM IN
outside_diameter2.070 INCHES MINIMUM AND 2.132 INCHES MAXIMUM IN
special_featuresINNER TUBE AND OUTER COVER MATL SILICONE RUBBER ZZ-R-765,CLASS 2
operating_pressure80.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
burst_test_pressure325.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
supplementary_featuresLOW PRESSURE SERVICE COOLANT AND HEATER HOSE
inside_surface_conditionSMOOTH
media_for_which_designedETHYLENE GLYCOL SINGLE RESPONSE
cross-sectional_shape_styleROUND
NSN4720-01-259-7057
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: FLX5501-26 · 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
•
LAYER COMPOSITION AND LOCATION: 1ST LAYER WOVEN FABRIC AND 2ND LAYER WOVEN FABRIC AND 3RD LAYER WOVEN FABRIC AND 4TH LAYER WOVEN FABRIC AND OUTER LAYER WRAPPED RUBBER, SYNTHETIC
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
INSIDE DIAMETER: 1.594 INCHES MINIMUM AND 1.641 INCHES MAXIMUM IN
•
EXTERIOR COLOR: GREEN
•
SPECIFICATION/STANDARD DATA: 81349-MIL-H-62217 GOVERNMENT SPECIFICATION
•
OUTSIDE DIAMETER: 2.070 INCHES MINIMUM AND 2.132 INCHES MAXIMUM IN
•
SUPPLEMENTARY FEATURES: LOW PRESSURE SERVICE COOLANT AND HEATER HOSE
TECHNICAL CHARACTERISTICS (FLIS)
LAYER COMPOSITION AND LOCATION1ST LAYER WOVEN FABRIC AND 2ND LAYER WOVEN FABRIC AND 3RD LAYER WOVEN FABRIC AND 4TH LAYER WOVEN FABRIC AND OUTER LAYER WRAPPED RUBBER, SYNTHETIC
CROSS-SECTIONAL SHAPE STYLEROUND
INSIDE DIAMETER1.594 INCHES MINIMUM AND 1.641 INCHES MAXIMUM IN
EXTERIOR COLORGREEN
SPECIFICATION/STANDARD DATA81349-MIL-H-62217 GOVERNMENT SPECIFICATION
OUTSIDE DIAMETER2.070 INCHES MINIMUM AND 2.132 INCHES MAXIMUM IN
SPECIAL FEATURESINNER TUBE AND OUTER COVER MATL SILICONE RUBBER ZZ-R-765,CLASS 2
SUPPLEMENTARY FEATURESLOW PRESSURE SERVICE COOLANT AND HEATER HOSE
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY 1.625 IN. ID IN
OPERATING PRESSURE80.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
4720PL1483235Interchangeable
interchangeable cross-reference
interchangeable
4720001770671Interchangeable
interchangeable cross-reference
interchangeable
10082411Interchangeable
interchangeable cross-reference
interchangeable
4720001770672Interchangeable
interchangeable cross-reference
interchangeable
7771-5Interchangeable
interchangeable cross-reference
interchangeable
39-3043-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FLX5501-26?
FLX5501-26 is a HOSE,NONMETALLIC.
What parts can replace FLX5501-26?
There are 24 known substitutes for FLX5501-26: 4720PL1483235, 4720001770671, 10082411 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FLX5501-26?
FLX5501-26 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-259-7057. 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