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Technical Data Sheet
1837643C1 ✓ 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

The O-RING is a the manufacturer industrial component. Key specifications include material: PLASTIC FLUOROCARBON, hardness_rating: 90.0 SHORE DUROMETER A NOMINAL, outside_diameter: 0.453 INCHES NOMINAL IN, special_features: FLUOROELASTOMER, O-RING 9MM X 2MM MM, center_hole_diameter: 0.358 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN, end_item_identification: MRAP, MAXXPRO; MRAP - MAXXPRO DASH ISS W/OGPK AND W/CROWS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-566-5624, 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
1837643C1
NSN: 5331-01-566-5624
FSC: 5331 — O-RING
CAGE: 338X5 — ND DEFENSE LLC (USA)
SPECIFICATIONS
materialPLASTIC FLUOROCARBON
hardness_rating90.0 SHORE DUROMETER A NOMINAL
outside_diameter0.453 INCHES NOMINAL IN
special_featuresFLUOROELASTOMER, O-RING 9MM X 2MM MM
center_hole_diameter0.358 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN
end_item_identificationMRAP, MAXXPRO; MRAP - MAXXPRO DASH ISS W/OGPK AND W/CROWS
part_name_assigned_by_controlling_agencySEAL,O-RING 9MM X 2MM MM
NSN5331-01-566-5624
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1837643C1 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
KEY FEATURES
HARDNESS RATING: 90.0 SHORE DUROMETER A NOMINAL
OUTSIDE DIAMETER: 0.453 INCHES NOMINAL IN
MATERIAL: PLASTIC FLUOROCARBON
CENTER HOLE DIAMETER: 0.358 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCYSEAL,O-RING 9MM X 2MM MM
OUTSIDE DIAMETER0.453 INCHES NOMINAL IN
MATERIALPLASTIC FLUOROCARBON
CENTER HOLE DIAMETER0.358 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN
SPECIAL FEATURESFLUOROELASTOMER, O-RING 9MM X 2MM MM
END ITEM IDENTIFICATIONMRAP, MAXXPRO; MRAP - MAXXPRO DASH ISS W/OGPK AND W/CROWS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
EMD-1444Interchangeable
interchangeable cross-reference
interchangeable
1831211C1Interchangeable
interchangeable cross-reference
interchangeable
VA151 2-109-T05Interchangeable
interchangeable cross-reference
interchangeable
1820878C2Interchangeable
interchangeable cross-reference
interchangeable
1818402C2Interchangeable
interchangeable cross-reference
interchangeable
1841581C1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1837643C1?
1837643C1 is a O-RING.
What parts can replace 1837643C1?
There are 12 known substitutes for 1837643C1: EMD-1444, 1831211C1, VA151 2-109-T05 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1837643C1?
1837643C1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-566-5624. This indicates validated use in U.S. government and defense supply chains.
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