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37347 ✓ Verified by PartsTable
Lindy · 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 TRANSFORMER,AUDIO FREQUENCY is a Lindy industrial component. Key specifications include material: STEEL CORROSION RESISTING BODY, lens_type: DISPLAY SCREEN FIRST ROW SECOND POSITION VERTICAL, body_width: 1.000 INCHES MAXIMUM IN, lens_color: COLORLESS SECOND ROW THIRD POSITION VERTICAL, body_height: 1.375 INCHES MAXIMUM IN, body_length: 1.000 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-3912, 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
37347
NSN: 4730-00-278-3912
FSC: 4730
CAGE: 78640 — MITSUBISHI CATERPILLAR FORKLIFT AMERICA, INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
lens_typeDISPLAY SCREEN FIRST ROW SECOND POSITION VERTICAL
body_width1.000 INCHES MAXIMUM IN
lens_colorCOLORLESS SECOND ROW THIRD POSITION VERTICAL
body_height1.375 INCHES MAXIMUM IN
body_length1.000 INCHES MAXIMUM IN
lens_legendGR3 AMPERSAND SYMBOL 4;SCRAM SECOND ROW TENTH POSITION VERTICAL FULL DISPLAY DIVISION A
filter_colorGREEN FIRST ROW TENTH POSITION VERTICAL FULL DISPLAY DIVISION A
lens_quantity20
overall_width5.235 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
overall_height2.030 INCHES MINIMUM AND 2.094 INCHES MAXIMUM IN
NSN4730-00-278-3912
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 37347 · Lindy ⚠ 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 24
MILF5509Interchangeable
interchangeable cross-reference
interchangeable
221-1086Interchangeable
interchangeable cross-reference
interchangeable
A90383-1Interchangeable
interchangeable cross-reference
interchangeable
18114Interchangeable
interchangeable cross-reference
interchangeable
77213Interchangeable
interchangeable cross-reference
interchangeable
213WDDNFS381AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 37347?
37347 is a TRANSFORMER,AUDIO FREQUENCY manufactured by Lindy.
What parts can replace 37347?
There are 24 known substitutes for 37347: MILF5509, 221-1086, A90383-1 and 21 more. Substitute compatibility should be verified for your specific system.
Is 37347 still available?
37347 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