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4320410 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

CAP,PROTECTIVE,DUST AND MOISTURE. Key specifications include overall_length: 0.30 INCHES NOMINAL IN, special_features: 1/8 NPTF PIPE SIZE, 0.26 INCH THREAD ENGAGEMENT IN, style_designator: PLUG, MACHINE, surface_treatment: ZINC OVERALL, end_item_identification: 4520-01-598-1844; MRAP - M-ATV, thread_quantity_per_inch: 27 EXTERNAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-350-6799, 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
4320410
NSN: 5340-01-350-6799
FSC: 5340
CAGE: 99643 — EATON AEROSPACE LLC DBA EATON AEROSPACE JACKSON (USA)
SPECIFICATIONS
overall_length0.30 INCHES NOMINAL IN
special_features1/8 NPTF PIPE SIZE, 0.26 INCH THREAD ENGAGEMENT IN
style_designatorPLUG, MACHINE
surface_treatmentZINC OVERALL
end_item_identification4520-01-598-1844; MRAP - M-ATV
thread_quantity_per_inch27 EXTERNAL
part_name_assigned_by_controlling_agencyZINC-PLATED STEEL SOLID HEX-SOCKET PLUG WITH SEALANT
NSN5340-01-350-6799
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4320410 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
RF5010C-DInterchangeable
interchangeable cross-reference
interchangeable
3861531-110Interchangeable
interchangeable cross-reference
interchangeable
R44371-D10Interchangeable
interchangeable cross-reference
interchangeable
1162T37Interchangeable
interchangeable cross-reference
interchangeable
4320410Interchangeable
interchangeable cross-reference
interchangeable
78423Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4320410?
4320410 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 4320410?
There are 6 known substitutes for 4320410: RF5010C-D, 3861531-110, R44371-D10 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4320410?
4320410 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-350-6799. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026