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Technical Data Sheet
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263770 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The SEAL,HANDPIECE,DENTAL is a the manufacturer industrial component. Key specifications include special_features: REAR SEAL FOR HIFLO 6 PIN; FIBER OPTIC SWIVEL; FOR STAR DENTAL HIGH-SPEED HANDPIECES; PACKAGE OF 3, unit_package_type: PACKAGE, end_item_identification: 6520-01-570-4471 HANDPIECE, DENTAL, part_name_assigned_by_controlling_agency: SEAL REAR HIFLO 6 PIN SWIVEL 3S. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-360-9223, 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
263770
NSN: 4730-01-360-9223
FSC: 4730
CAGE: 12183 — HALPRIN SUPPLY CO (USA)
SPECIFICATIONS
special_featuresREAR SEAL FOR HIFLO 6 PIN; FIBER OPTIC SWIVEL; FOR STAR DENTAL HIGH-SPEED HANDPIECES; PACKAGE OF 3
unit_package_typePACKAGE
unit_package_quantity3
end_item_identification6520-01-570-4471 HANDPIECE, DENTAL
part_name_assigned_by_controlling_agencySEAL REAR HIFLO 6 PIN SWIVEL 3S
NSN4730-01-360-9223
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 263770 · 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
•
MATERIAL: RUBBER SYNTHETIC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
263770Interchangeable
interchangeable cross-reference
interchangeable
17415Interchangeable
interchangeable cross-reference
interchangeable
6520NCM104479Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 263770?
263770 is a SEAL,HANDPIECE,DENTAL.
What parts can replace 263770?
There are 3 known substitutes for 263770: 263770, 17415, 6520NCM104479. Substitute compatibility should be verified for your specific system.
What is the NSN for 263770?
263770 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-360-9223. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026