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Technical Data Sheet
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8EQ8556 ✓ 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 CONNECTOR,PLUG,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, inside_diameter: 1.240 INCHES NOMINAL IN, special_features: GRUMMAN AEROSPACE A-10 AIRCRAFT, style_designator: BAND, surface_treatment: ZINC OVERALL, fastening_device_type: PLAIN SLOTTED HEAD SCREW. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-202-6643, 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
8EQ8556
NSN: 4730-00-202-6643
FSC: 4730
CAGE: 57526 — FORD MOTOR COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
inside_diameter1.240 INCHES NOMINAL IN
special_featuresGRUMMAN AEROSPACE A-10 AIRCRAFT
style_designatorBAND
surface_treatmentZINC OVERALL
fastening_device_typePLAIN SLOTTED HEAD SCREW
NSN4730-00-202-6643
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 8EQ8556 · 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
KEY FEATURES
•
FASTENING DEVICE TYPE: PLAIN SLOTTED HEAD SCREW
•
STYLE DESIGNATOR: BAND
•
INSIDE DIAMETER: 1.240 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: ZINC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESGRUMMAN AEROSPACE A-10 AIRCRAFT
FASTENING DEVICE TYPEPLAIN SLOTTED HEAD SCREW
STYLE DESIGNATORBAND
INSIDE DIAMETER1.240 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SURFACE TREATMENTZINC OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
5520Interchangeable
interchangeable cross-reference
interchangeable
BT5520Interchangeable
interchangeable cross-reference
interchangeable
43924Interchangeable
interchangeable cross-reference
interchangeable
D89368Interchangeable
interchangeable cross-reference
interchangeable
220636Interchangeable
interchangeable cross-reference
interchangeable
BX220636NInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8EQ8556?
8EQ8556 is a CONNECTOR,PLUG,ELECTRICAL.
What parts can replace 8EQ8556?
There are 23 known substitutes for 8EQ8556: 5520, BT5520, 43924 and 20 more. Substitute compatibility should be verified for your specific system.
Is 8EQ8556 still available?
8EQ8556 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