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Technical Data Sheet
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170-43 ✓ 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

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: STEEL CORROSION RESISTING OVERALL, body_style: STRAIGHT SHAPE, EXTERNAL COUPLING, head_style: PAN NO. 2, shell_type: SOLID, head_height: 0.063 INCHES NOMINAL IN, thread_class: 2A A.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-052-3420, 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
170-43
NSN: 4730-00-052-3420
FSC: 4730
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
body_styleSTRAIGHT SHAPE, EXTERNAL COUPLING
head_stylePAN NO. 2
shell_typeSOLID
head_height0.063 INCHES NOMINAL IN
thread_class2A A
end_item_nameWINDING MACHINE
head_diameter0.212 INCHES NOMINAL IN
terminal_typeSOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
thread_length0.312 INCHES MAXIMUM IN
overall_length14.0 MILLIMETERS NOMINAL MM
screw_materialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 310 OR STEEL COMP 316
NSN4730-00-052-3420
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 170-43 · 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 26
65A132C120-2Interchangeable
interchangeable cross-reference
interchangeable
50114401-005Interchangeable
interchangeable cross-reference
interchangeable
4177214-15Interchangeable
interchangeable cross-reference
interchangeable
17043Interchangeable
interchangeable cross-reference
interchangeable
4L600Interchangeable
interchangeable cross-reference
interchangeable
12357Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 170-43?
170-43 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 170-43?
There are 26 known substitutes for 170-43: 65A132C120-2, 50114401-005, 4177214-15 and 23 more. Substitute compatibility should be verified for your specific system.
Is 170-43 still available?
170-43 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