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Technical Data Sheet
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6203 ✓ 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

INSULATING COMPOUND KIT,ELECTRIC. Key specifications include color: BLUE OVERALL, phase: THREE, width: 0.188 INCHES NOMINAL TIP IN, length: 13.500 FEET NOMINAL FT, material: STEEL OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-024-3971, 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
6203
NSN: 4730-00-024-3971
FSC: 4730
CAGE: 81646 — EPICOR INDUSTRIES INC IDEAL DIV (USA)
SPECIFICATIONS
colorBLUE OVERALL
phaseTHREE
width0.188 INCHES NOMINAL TIP IN
length13.500 FEET NOMINAL FT
materialSTEEL OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
thickness0.033 INCHES NOMINAL TIP IN
tube_typeRECTIFIER
blade_typeFINE AND COARSE
bore_shapeSTRAIGHT
case_styleRECESSED
chain_typePROOF COIL
NSN4730-00-024-3971
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6203 · 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
KEY FEATURES
•
FASTENING DEVICE TYPE: SLOTTED HEXAGON HEAD SCREW
•
STYLE DESIGNATOR: WIRE
•
INSIDE DIAMETER: 0.312 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.310 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONGRUMMAN A-10 ACFT; ARMORED MULTI-PURPOSE VEHICLE (AMPV)
FASTENING DEVICE TYPESLOTTED HEXAGON HEAD SCREW
STYLE DESIGNATORWIRE
INSIDE DIAMETER0.312 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
WB101Interchangeable
interchangeable cross-reference
interchangeable
6706Interchangeable
interchangeable cross-reference
interchangeable
VS346Interchangeable
interchangeable cross-reference
interchangeable
345006Interchangeable
interchangeable cross-reference
interchangeable
NB3028PC155Interchangeable
interchangeable cross-reference
interchangeable
BKS155NB3028Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6203?
6203 is a INSULATING COMPOUND KIT,ELECTRIC manufactured by Lindy.
What parts can replace 6203?
There are 29 known substitutes for 6203: WB101, 6706, VS346 and 26 more. Substitute compatibility should be verified for your specific system.
Is 6203 still available?
6203 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