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34218REVA — EXPANSION JOINT,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

34218REVA: EXPANSION JOINT,PIPE.

The EXPANSION JOINT,PIPE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY RETAINER, bore_shape: STRAIGHT, bore_diameter: 150.0 MILLIMETERS NOMINAL MM, overall_width: 28.00 MILLIMETERS NOMINAL MM, surface_finish: GROUND, locating_feature: TWO DIRECTION. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-270-4456, 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
34218REVA
NSN: 4730-01-270-4456
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 70510 — HYSPAN PRECISION PRODUCTS, INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY RETAINER
bore_shapeSTRAIGHT
bore_diameter150.0 MILLIMETERS NOMINAL MM
overall_width28.00 MILLIMETERS NOMINAL MM
surface_finishGROUND
locating_featureTWO DIRECTION
internal_clearance0.0020 INCHES MINIMUM RADIAL AND 0.0030 INCHES MAXIMUM RADIAL IN
overall_outside_diameter210.00 MILLIMETERS NOMINAL MM
retainer_fabrication_methodMACHINED
standard_tolerance_designationRBEC NO.1
NSN4730-01-270-4456
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 34218REVA · 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
SUBSTITUTES & CROSS-REFERENCES 1
34218Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 34218REVA?
34218REVA is a EXPANSION JOINT,PIPE.
What parts can replace 34218REVA?
There is 1 known substitute for 34218REVA: 34218. Substitute compatibility should be verified for your specific system.
What is the NSN for 34218REVA?
34218REVA is cataloged in the U.S. Government catalog under NSN 4730-01-270-4456. 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.