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21A18-02C18-4 — HOSE,AIR DUCT

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

21A18-02C18-4: HOSE,AIR DUCT.

The HOSE,AIR DUCT is a the manufacturer industrial component. Key specifications include material: FIBERGLASS FIRST PLY, temp_rating: -75.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF, wall_thickness: 0.188 INCHES NOMINAL IN, connection_type: PLAIN BOTH ENDS, inside_diameter: 0.500 INCHES NOMINAL BOTH ENDS IN, connection_style: ROUND BOTH ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-529-0930, 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
21A18-02C18-4
NSN: 4720-01-529-0930
FSC: 4720 — Hose and Flexible Tubing
CAGE: 14711 — RSA ENGINEERED PRODUCTS, LLC DBA RSA ENGINEERED PRODUCTS LLC (USA)
SPECIFICATIONS
materialFIBERGLASS FIRST PLY
temp_rating-75.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
wall_thickness0.188 INCHES NOMINAL IN
connection_typePLAIN BOTH ENDS
inside_diameter0.500 INCHES NOMINAL BOTH ENDS IN
connection_styleROUND BOTH ENDS
outside_diameter0.625 INCHES NOMINAL BOTH ENDS IN
special_featuresPROOF PRESSURE: 130 PSIG MINIMUM, BURST PRESSURE: 195 PSIG MINIMUM; MINIMUM COLAPSE PRESSURE WITHOUT DEFORMATION: 2.0 PSIG
style_designatorHELICALLY WOUND CONTINOUS WIRE SUPPORTED
end_overall_length1.000 INCHES NOMINAL BOTH ENDS IN
operating_pressure65.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
end_inside_diameter0.500 INCHES NOMINAL BOTH ENDS IN
NSN4720-01-529-0930
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 21A18-02C18-4 · 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: 3.680 INCHES NOMINAL OVERALL IN
•
TEMP RATING: -75.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
•
MINIMUM INSIDE BENDING RADIUS: 0.500 INCHES IN
•
CONNECTION STYLE: ROUND BOTH ENDS
•
CONNECTION TYPE: PLAIN BOTH ENDS
•
STYLE DESIGNATOR: HELICALLY WOUND CONTINOUS WIRE SUPPORTED
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
WALL THICKNESS: 0.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MEASURING METHOD AND LENGTH3.680 INCHES NOMINAL OVERALL IN
TEMP RATING-75.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
MINIMUM INSIDE BENDING RADIUS0.500 INCHES IN
CONNECTION STYLEROUND BOTH ENDS
CONNECTION TYPEPLAIN BOTH ENDS
STYLE DESIGNATORHELICALLY WOUND CONTINOUS WIRE SUPPORTED
CROSS-SECTIONAL SHAPE STYLEROUND
WALL THICKNESS0.188 INCHES NOMINAL IN
OUTSIDE DIAMETER0.625 INCHES NOMINAL BOTH ENDS IN
OPERATING PRESSURE65.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
SUBSTITUTES & CROSS-REFERENCES 1
LE271-0102Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21A18-02C18-4?
21A18-02C18-4 is a HOSE,AIR DUCT.
What parts can replace 21A18-02C18-4?
There is 1 known substitute for 21A18-02C18-4: LE271-0102. Substitute compatibility should be verified for your specific system.
What is the NSN for 21A18-02C18-4?
21A18-02C18-4 is cataloged in the U.S. Government catalog under NSN 4720-01-529-0930. This indicates validated use in U.S. government and defense supply chains.
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