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B643-1010-F81 — KEY,STABILIZER,BUSHING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

B643-1010-F81: KEY,STABILIZER,BUSHING.

The KEY,STABILIZER,BUSHING is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, overall_length: 5.000 INCHES NOMINAL IN, overall_diameter: 6.380 INCHES NOMINAL IN, end_item_identification: MISC PARTS VENTILATION, criticality_code_justification: FEAT, general_characteristics_item_description: SYNTHETIC RUBBER MIL-R-6855/5 STYLE A. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-516-0894, 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-F81
NSN: 4730-01-516-0894
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
overall_length5.000 INCHES NOMINAL IN
overall_diameter6.380 INCHES NOMINAL IN
special_featuresWEAPON SYSTEM ESSENTIAL; 3.0" I.D., EACH END HAS 1.69" WIDE MOUNTING FLANGE .187" THICK; MOUNTING HOLES DRILLED DURING INSTALLATION
end_item_identificationMISC PARTS VENTILATION
criticality_code_justificationFEAT
general_characteristics_item_descriptionSYNTHETIC RUBBER MIL-R-6855/5 STYLE A
part_name_assigned_by_controlling_agencyFLEXIBLE CONNECTION
NSN4730-01-516-0894
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B643-1010-F81 · 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
•
OVERALL DIAMETER: 6.380 INCHES NOMINAL IN
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: SYNTHETIC RUBBER MIL-R-6855/5 STYLE A
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER6.380 INCHES NOMINAL IN
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSYNTHETIC RUBBER MIL-R-6855/5 STYLE A
CRITICALITY CODE JUSTIFICATIONFEAT
OVERALL LENGTH5.000 INCHES NOMINAL IN
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL; 3.0" I.D., EACH END HAS 1.69" WIDE MOUNTING FLANGE .187" THICK; MOUNTING HOLES DRILLED DURING INSTALLATION
PART NAME ASSIGNED BY CONTROLLING AGENCYFLEXIBLE CONNECTION
END ITEM IDENTIFICATIONMISC PARTS VENTILATION
MATERIALRUBBER SYNTHETIC
SUBSTITUTES & CROSS-REFERENCES 3
512-6903589-F81Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
512-6406851 FN 205Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
6406851Reference 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-F81?
B643-1010-F81 is a KEY,STABILIZER,BUSHING.
What parts can replace B643-1010-F81?
There are 3 known substitutes for B643-1010-F81: 512-6903589-F81, 512-6406851 FN 205, 6406851. Substitute compatibility should be verified for your specific system.
What is the NSN for B643-1010-F81?
B643-1010-F81 is cataloged in the U.S. Government catalog under NSN 4730-01-516-0894. This indicates validated use in U.S. government and defense supply chains.
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