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AN737TW-26 ✓ 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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include material: STEEL CORROSION RESISTING OVERALL, overall_width: 0.562 INCHES NOMINAL IN, inside_diameter: 0.562 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN, style_designator: WIRE, fastening_device_type: SLOTTED HEXAGON HEAD SCREW. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-122-3338, 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
AN737TW-26
NSN: 4730-01-122-3338
FSC: 4730
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
overall_width0.562 INCHES NOMINAL IN
inside_diameter0.562 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN
style_designatorWIRE
fastening_device_typeSLOTTED HEXAGON HEAD SCREW
NSN4730-01-122-3338
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN737TW-26 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
H10Interchangeable
interchangeable cross-reference
interchangeable
C0NF12405AInterchangeable
interchangeable cross-reference
interchangeable
385411 R91Interchangeable
interchangeable cross-reference
interchangeable
70-95000-1003-6Interchangeable
interchangeable cross-reference
interchangeable
7000031087Interchangeable
interchangeable cross-reference
interchangeable
751-003022Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN737TW-26?
AN737TW-26 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace AN737TW-26?
There are 29 known substitutes for AN737TW-26: H10, C0NF12405A, 385411 R91 and 26 more. Substitute compatibility should be verified for your specific system.
Is AN737TW-26 still available?
AN737TW-26 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026