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Technical Data Sheet
PartsTable / COMPONENT / L-H-520
L-H-520 ✓ 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 material: PLASTIC, design_type: PERFORATED HOSE, temp_rating: -40.0 FAHRENHEIT SINGLE RESPONSE DEGF, adjustability: NONADJUSTABLE, connection_type: THREADED INTERNAL HOSE FIRST END, inside_diameter: 0.750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-199-7806, 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
L-H-520
NSN: 4720-00-199-7806
FSC: 4720
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialPLASTIC
design_typePERFORATED HOSE
temp_rating-40.0 FAHRENHEIT SINGLE RESPONSE DEGF
adjustabilityNONADJUSTABLE
connection_typeTHREADED INTERNAL HOSE FIRST END
inside_diameter0.750 INCHES NOMINAL IN
connection_styleSWIVEL NUT, GASKET SEAL FIRST END
special_featuresWITH BOTH MALE AND FEMALE COUPLING
thread_directionRIGHT-HAND FIRST END
maximum_spray_area625 SQ FT.
operating_pressure125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
burst_test_pressure300.0 POUNDS PER SQUARE INCH LBS
NSN4720-00-199-7806
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: L-H-520 · 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 RUBBER IMPREGNATED COTTON FABRIC AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
•
HYDROSTATIC TEST PRESSURE: 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE
•
MATERIAL: RUBBER SYNTHETIC TUBE
•
MEDIA FOR WHICH DESIGNED: WATER, FRESH SINGLE RESPONSE
•
BURST TEST PRESSURE: 500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
INSIDE DIAMETER: 0.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
LAYER COMPOSITION AND LOCATION1ST LAYER RUBBER IMPREGNATED COTTON FABRIC AND OUTER LAYER MOLDED RUBBER, SYNTHETIC
HYDROSTATIC TEST PRESSURE150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
NONDEFINITIVE SPEC/STD DATA1 TYPE
MATERIALRUBBER SYNTHETIC TUBE
MEDIA FOR WHICH DESIGNEDWATER, FRESH SINGLE RESPONSE
BURST TEST PRESSURE500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE LBS
CROSS-SECTIONAL SHAPE STYLEROUND
INSIDE DIAMETER0.750 INCHES NOMINAL IN
INSIDE SURFACE CONDITIONSMOOTH
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
L-H-520Interchangeable
interchangeable cross-reference
interchangeable
A-A-59270Interchangeable
interchangeable cross-reference
interchangeable
AA59270A1CInterchangeable
interchangeable cross-reference
interchangeable
57601Interchangeable
interchangeable cross-reference
interchangeable
53-202Interchangeable
interchangeable cross-reference
interchangeable
AA59270A1BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is L-H-520?
L-H-520 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace L-H-520?
There are 12 known substitutes for L-H-520: L-H-520, A-A-59270, AA59270A1C and 9 more. Substitute compatibility should be verified for your specific system.
Is L-H-520 still available?
L-H-520 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026