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RL531 — HOSE ASSEMBLY,NONMETALLIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

RL531: HOSE ASSEMBLY,NONMETALLIC.

The HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include seat_angle: 30.0 DEGREES FIRST END, temp_rating: -20.0 FAHRENHEIT AND 80.0 FAHRENHEIT SINGLE RESPONSE DEGF, thread_class: 3B FIRST END, exterior_color: RED, connection_type: THREADED INTERNAL TUBE FIRST END, inside_diameter: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4720-00-356-8571, 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
RL531
NSN: 4720-00-356-8571
FSC: 4720 — Hose and Flexible Tubing
CAGE: 55681 — SMITH EQUIPMENT MFG CO LLC (USA)
SPECIFICATIONS
seat_angle30.0 DEGREES FIRST END
temp_rating-20.0 FAHRENHEIT AND 80.0 FAHRENHEIT SINGLE RESPONSE DEGF
thread_class3B FIRST END
exterior_colorRED
connection_typeTHREADED INTERNAL TUBE FIRST END
inside_diameter0.250 INCHES NOMINAL IN
connection_styleSWIVEL NUT FLARE FIRST END
outside_diameter0.594 INCHES NOMINAL IN
special_markingsACET-HYD
thread_directionLEFT-HAND FIRST END
burst_test_pressure700.0 POUNDS PER SQUARE INCH LBS
nominal_thread_size0.562 INCHES FIRST END IN
NSN4720-00-356-8571
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: RL531 · 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
•
MEASURING METHOD AND LENGTH: 300.000 INCHES NOMINAL EXCLUDING END FITTINGS IN
•
TEMP RATING: -20.0 FAHRENHEIT AND 80.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
CONNECTION STYLE: SWIVEL NUT FLARE FIRST END
•
END CONNECTION DESIGN: STRAIGHT FIRST END
•
LAYER COMPOSITION AND LOCATION: OUTER LAYER MOLDED RUBBER AND 1ST LAYER RUBBER IMPREGNATED BRAIDED COTTON CORD
•
CONNECTION TYPE: THREADED INTERNAL TUBE FIRST END
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
OUTSIDE DIAMETER: 0.594 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MEASURING METHOD AND LENGTH300.000 INCHES NOMINAL EXCLUDING END FITTINGS IN
TEMP RATING-20.0 FAHRENHEIT AND 80.0 FAHRENHEIT SINGLE RESPONSE DEGF
CONNECTION STYLESWIVEL NUT FLARE FIRST END
END CONNECTION DESIGNSTRAIGHT FIRST END
LAYER COMPOSITION AND LOCATIONOUTER LAYER MOLDED RUBBER AND 1ST LAYER RUBBER IMPREGNATED BRAIDED COTTON CORD
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
CROSS-SECTIONAL SHAPE STYLEROUND
OUTSIDE DIAMETER0.594 INCHES NOMINAL IN
THREAD DIRECTIONLEFT-HAND FIRST END
NOMINAL THREAD SIZE0.562 INCHES FIRST END IN
SUBSTITUTES & CROSS-REFERENCES 5
21-1108Reference document
Same NSN cross-reference
Reference document — Secondary reference
M149Reference document
Same NSN cross-reference
Reference document — Secondary reference
ZZ-H-461Reference document
Same NSN cross-reference
Reference document — Secondary reference
5600FRReference document
Same NSN cross-reference
Reference document — Secondary reference
1362450Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is RL531?
RL531 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace RL531?
There are 5 known substitutes for RL531: 21-1108, M149, ZZ-H-461 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RL531?
RL531 is cataloged in the U.S. Government catalog under NSN 4720-00-356-8571. This indicates validated use in U.S. government and defense supply chains.
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