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Technical Data Sheet
PartsTable / COMPONENT / FLX5508
FLX5508 ✓ 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 FILTER,BAND PASS-LOW PASS 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: 4.000 INCHES NOMINAL IN, outside_diameter: 4.240 INCHES MINIMUM AND 4.278 INCHES MAXIMUM IN, operating_pressure: 75.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, burst_test_pressure: 250.0 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 4720-01-340-5851, 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
FLX5508
NSN: 4720-01-340-5851
FSC: 4720
CAGE: 84501 — FEDERAL HOSE MFG (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q TUBE
temp_rating-65.0 FAHRENHEIT AND 350.0 FAHRENHEIT SINGLE RESPONSE DEGF
inside_diameter4.000 INCHES NOMINAL IN
outside_diameter4.240 INCHES MINIMUM AND 4.278 INCHES MAXIMUM IN
operating_pressure75.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
burst_test_pressure250.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
end_item_identificationGENERAL DYNAMICS CORP F16 AIRCRAFT
inside_surface_conditionSMOOTH
cross-sectional_shape_styleROUND
layer_composition_and_location1ST LAYER BRAIDED WIRE AND 2ND LAYER BRAIDED POLYESTER CORD AND OUTER LAYER MOLDED RUBBER
NSN4720-01-340-5851
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: FLX5508 · 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
•
INSIDE DIAMETER: 4.000 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
INSIDE SURFACE CONDITION: SMOOTH
•
MATERIAL: RUBBER SILICONE CLASS Q TUBE
•
TEMP RATING: -65.0 FAHRENHEIT AND 350.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
LAYER COMPOSITION AND LOCATION: 1ST LAYER BRAIDED WIRE AND 2ND LAYER BRAIDED POLYESTER CORD AND OUTER LAYER MOLDED RUBBER
•
BURST TEST PRESSURE: 250.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER4.000 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEROUND
INSIDE SURFACE CONDITIONSMOOTH
END ITEM IDENTIFICATIONGENERAL DYNAMICS CORP F16 AIRCRAFT
MATERIALRUBBER SILICONE CLASS Q TUBE
TEMP RATING-65.0 FAHRENHEIT AND 350.0 FAHRENHEIT SINGLE RESPONSE DEGF
LAYER COMPOSITION AND LOCATION1ST LAYER BRAIDED WIRE AND 2ND LAYER BRAIDED POLYESTER CORD AND OUTER LAYER MOLDED RUBBER
BURST TEST PRESSURE250.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
OUTSIDE DIAMETER4.240 INCHES MINIMUM AND 4.278 INCHES MAXIMUM IN
OPERATING PRESSURE75.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
DYN26HInterchangeable
interchangeable cross-reference
interchangeable
ET-13-180Interchangeable
interchangeable cross-reference
interchangeable
5508Interchangeable
interchangeable cross-reference
interchangeable
1783947Interchangeable
interchangeable cross-reference
interchangeable
CW12-847Interchangeable
interchangeable cross-reference
interchangeable
SS0-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FLX5508?
FLX5508 is a FILTER,BAND PASS-LOW PASS.
What parts can replace FLX5508?
There are 22 known substitutes for FLX5508: DYN26H, ET-13-180, 5508 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FLX5508?
FLX5508 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-340-5851. 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