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Technical Data Sheet
PartsTable / COMPONENT / L-3290
L-3290 ✓ 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 TRANSFORMER,POWER is a the manufacturer industrial component. Key specifications include body_width: 2.625 INCHES NOMINAL IN, body_height: 3.375 INCHES NOMINAL IN, body_length: 3.281 INCHES NOMINAL IN, inclosure_type: OPEN, mounting_method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP, frequency_rating: 50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-287-3692, 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
L-3290
NSN: 4730-00-287-3692
FSC: 4730
CAGE: 46717 — PETTIBONE LLC (USA)
SPECIFICATIONS
body_width2.625 INCHES NOMINAL IN
body_height3.375 INCHES NOMINAL IN
body_length3.281 INCHES NOMINAL IN
inclosure_typeOPEN
mounting_methodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
reliability_indicatorNOT ESTABLISHED
mounting_hole_diameter0.187 INCHES NOMINAL SINGLE GROUP IN
winding_shielding_methodINTERNAL SHIELD GROUNDED TO CORE SINGLE COMPONENT
winding_operating_current30.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
winding_operating_voltage30.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
mounting_facility_quantity4 SINGLE GROUP
NSN4730-00-287-3692
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: L-3290 · 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 12
G231154Interchangeable
interchangeable cross-reference
interchangeable
7612777Interchangeable
interchangeable cross-reference
interchangeable
M734Interchangeable
interchangeable cross-reference
interchangeable
L3290Interchangeable
interchangeable cross-reference
interchangeable
43762Interchangeable
interchangeable cross-reference
interchangeable
442516-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is L-3290?
L-3290 is a TRANSFORMER,POWER.
What parts can replace L-3290?
There are 12 known substitutes for L-3290: G231154, 7612777, M734 and 9 more. Substitute compatibility should be verified for your specific system.
Is L-3290 still available?
L-3290 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