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Technical Data Sheet
PartsTable / MRO / 18236
18236 ✓ Verified by PartsTable
Trefl · MRO · MRO_GENERAL
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 RETAINER,ELECTRICAL SWITCH is a Trefl industrial component. Key specifications include color: BLUE, material: PAPER OVERALL, bore_shape: ROUGH STOCK BOTH ENDS, bore_length: 0.9375 INCHES NOMINAL BOTH ENDS IN, design_type: INSERT, keyway_depth: 0.0940 INCHES NOMINAL BOTH ENDS IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-014-3343, 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
MRO→ MRO_GENERAL→ 18236
NSN: 4730-00-014-3343
FSC: 4730
CAGE: 35301 — DRESSER INDUSTRIES INC LEROI DIV (USA)
SPECIFICATIONS
colorBLUE
materialPAPER OVERALL
bore_shapeROUGH STOCK BOTH ENDS
bore_length0.9375 INCHES NOMINAL BOTH ENDS IN
design_typeINSERT
keyway_depth0.0940 INCHES NOMINAL BOTH ENDS IN
keyway_width0.188 INCHES NOMINAL BOTH ENDS IN
bore_diameter0.6250 INCHES NOMINAL BOTH ENDS IN
hole_diameter0.391 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
color_locationOVERALL
overall_length2.375 INCHES NOMINAL IN
insert_materialRUBBER SYNTHETIC
NSN4730-00-014-3343
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 18236 · Trefl ⚠ 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 23
18236Interchangeable
interchangeable cross-reference
interchangeable
7W2664Interchangeable
interchangeable cross-reference
interchangeable
9W34998REVBW1TH 341ND1AWHLCCWR0Interchangeable
interchangeable cross-reference
interchangeable
50242Interchangeable
interchangeable cross-reference
interchangeable
385125Interchangeable
interchangeable cross-reference
interchangeable
14.10.1.004/6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 18236?
18236 is a RETAINER,ELECTRICAL SWITCH manufactured by Trefl. It is classified as a MRO (MRO_GENERAL).
What parts can replace 18236?
There are 23 known substitutes for 18236: 18236, 7W2664, 9W34998REVBW1TH 341ND1AWHLCCWR0 and 20 more. Substitute compatibility should be verified for your specific system.
Is 18236 still available?
18236 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