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5346-300 — RING,NUT,TUBE COUPLING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

5346-300: RING,NUT,TUBE COUPLING.

The RING,NUT,TUBE COUPLING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, overall_diameter: 1.500 INCHES NOMINAL IN, special_features: BRASS RETAINING RING FITS WITHIN 1.5 INCH PIPE UNION IN, end_item_identification: DEMINERALIZER, part_name_assigned_by_controlling_agency: RING, RETAINING. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-472-9857, 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
5346-300
NSN: 4730-01-472-9857
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 72423 — FLAGG STANLEY G & CO INC DBA FLAGG BRASS (USA)
SPECIFICATIONS
materialCOPPER ALLOY
overall_diameter1.500 INCHES NOMINAL IN
special_featuresBRASS RETAINING RING FITS WITHIN 1.5 INCH PIPE UNION IN
end_item_identificationDEMINERALIZER
part_name_assigned_by_controlling_agencyRING, RETAINING
NSN4730-01-472-9857
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5346-300 · 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
•
OVERALL DIAMETER: 1.500 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER1.500 INCHES NOMINAL IN
SPECIAL FEATURESBRASS RETAINING RING FITS WITHIN 1.5 INCH PIPE UNION IN
PART NAME ASSIGNED BY CONTROLLING AGENCYRING, RETAINING
END ITEM IDENTIFICATIONDEMINERALIZER
MATERIALCOPPER ALLOY
SUBSTITUTES & CROSS-REFERENCES 2
30-0194Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
10565 REV D PC NO 52Reference document
Same NSN cross-reference
Reference document — Secondary 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 5346-300?
5346-300 is a RING,NUT,TUBE COUPLING.
What parts can replace 5346-300?
There are 2 known substitutes for 5346-300: 30-0194, 10565 REV D PC NO 52. Substitute compatibility should be verified for your specific system.
What is the NSN for 5346-300?
5346-300 is cataloged in the U.S. Government catalog under NSN 4730-01-472-9857. 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.