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B643-1010-F109 — CONNECTION,FLEXIBLE,PIPELINE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

B643-1010-F109: CONNECTION,FLEXIBLE,PIPELINE.

The CONNECTION,FLEXIBLE,PIPELINE is a the manufacturer industrial component. Key specifications include special_features: FLANGED RECTANGULAR SYNTHETIC RUBBER, 12.000LX6.0O0OO0WX2.500D, connection_design: STRAIGHT, end_item_identification: MISC PARTS VENTILATION SYSTEMS SSN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-518-0255, 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
B643-1010-F109
NSN: 4730-01-518-0255
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
special_featuresFLANGED RECTANGULAR SYNTHETIC RUBBER, 12.000LX6.0O0OO0WX2.500D
connection_designSTRAIGHT
end_item_identificationMISC PARTS VENTILATION SYSTEMS SSN
NSN4730-01-518-0255
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B643-1010-F109 · 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
•
CONNECTION DESIGN: STRAIGHT
TECHNICAL CHARACTERISTICS
CONNECTION DESIGNSTRAIGHT
SPECIAL FEATURESFLANGED RECTANGULAR SYNTHETIC RUBBER, 12.000LX6.0O0OO0WX2.500D
END ITEM IDENTIFICATIONMISC PARTS VENTILATION SYSTEMS SSN
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 3
512-6406851 FN 170Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
512-6903589-F109Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
512-6906851Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B643-1010-F109?
B643-1010-F109 is a CONNECTION,FLEXIBLE,PIPELINE.
What parts can replace B643-1010-F109?
There are 3 known substitutes for B643-1010-F109: 512-6406851 FN 170, 512-6903589-F109, 512-6906851. Substitute compatibility should be verified for your specific system.
What is the NSN for B643-1010-F109?
B643-1010-F109 is cataloged in the U.S. Government catalog under NSN 4730-01-518-0255. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.