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WWD340 ✓ 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 OSCILLATOR,CRYSTAL CONTROLLED is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING BAND, overall_width: 0.500 INCHES NOMINAL IN, inside_diameter: 10.625 INCHES NOMINAL IN, style_designator: BAND, surface_treatment: ZINC THUMBSCREW, fastening_device_type: THUMB HEAD SCREW. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-0440, 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
WWD340
NSN: 4730-00-278-0440
FSC: 4730
CAGE: 66295 — WITTEK COMPANIES INTL INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BAND
overall_width0.500 INCHES NOMINAL IN
inside_diameter10.625 INCHES NOMINAL IN
style_designatorBAND
surface_treatmentZINC THUMBSCREW
fastening_device_typeTHUMB HEAD SCREW
NSN4730-00-278-0440
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: WWD340 · 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: THUMB HEAD SCREW
•
MATERIAL: STEEL THUMBSCREW
•
STYLE DESIGNATOR: BAND
•
INSIDE DIAMETER: 10.625 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC THUMBSCREW
TECHNICAL CHARACTERISTICS (FLIS)
FASTENING DEVICE TYPETHUMB HEAD SCREW
MATERIALSTEEL THUMBSCREW
STYLE DESIGNATORBAND
INSIDE DIAMETER10.625 INCHES NOMINAL IN
SURFACE TREATMENTZINC THUMBSCREW
MATERIALSTEEL CORROSION RESISTING BAND
OVERALL WIDTH0.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
142311Interchangeable
interchangeable cross-reference
interchangeable
417433-1Interchangeable
interchangeable cross-reference
interchangeable
BA10010-16Interchangeable
interchangeable cross-reference
interchangeable
91659647Interchangeable
interchangeable cross-reference
interchangeable
BAA32PXDInterchangeable
interchangeable cross-reference
interchangeable
T164Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is WWD340?
WWD340 is a OSCILLATOR,CRYSTAL CONTROLLED.
What parts can replace WWD340?
There are 9 known substitutes for WWD340: 142311, 417433-1, BA10010-16 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for WWD340?
WWD340 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-0440. 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