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AR21839 — CLAMP,HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AR21839: CLAMP,HOSE.

The CLAMP,HOSE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, overall_width: 0.497 INCHES MINIMUM AND 0.569 INCHES MAXIMUM IN, inside_diameter: 0.690 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN, style_designator: WIRE, fastening_device_type: SLOTTED HEXAGON HEAD SCREW. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-379-2070, 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
AR21839
NSN: 4730-01-379-2070
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: Z0944 — HITACHI CONSTRUCTION MACHINERY AUST AUSTRALIA PTY LTD HITACHI CONSTRUCTION MACHINERY (AUS)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
overall_width0.497 INCHES MINIMUM AND 0.569 INCHES MAXIMUM IN
inside_diameter0.690 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
style_designatorWIRE
fastening_device_typeSLOTTED HEXAGON HEAD SCREW
NSN4730-01-379-2070
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AR21839 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FASTENING DEVICE TYPE: SLOTTED HEXAGON HEAD SCREW
•
STYLE DESIGNATOR: WIRE
•
INSIDE DIAMETER: 0.690 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
FASTENING DEVICE TYPESLOTTED HEXAGON HEAD SCREW
STYLE DESIGNATORWIRE
OVERALL WIDTH0.497 INCHES MINIMUM AND 0.569 INCHES MAXIMUM IN
INSIDE DIAMETER0.690 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
TY22467Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
AT18904Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AR21839?
AR21839 is a CLAMP,HOSE.
What parts can replace AR21839?
There are 2 known substitutes for AR21839: TY22467, AT18904. Substitute compatibility should be verified for your specific system.
What is the NSN for AR21839?
AR21839 is cataloged in the U.S. Government catalog under NSN 4730-01-379-2070. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.