PartsTable
Technical Data Sheet
6840363-16 ✓ 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 material: ALUMINUM, design_type: THREADED, thread_class: 2B, overall_diameter: 0.942 INCHES MINIMUM AND 0.944 INCHES MAXIMUM IN, surface_treatment: ANODIZE, inside_diameter_length: 0.845 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-044-5828, 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
6840363-16
NSN: 5340-00-044-5828
FSC: 5340
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)
SPECIFICATIONS
materialALUMINUM
design_typeTHREADED
thread_class2B
overall_diameter0.942 INCHES MINIMUM AND 0.944 INCHES MAXIMUM IN
surface_treatmentANODIZE
inside_diameter_length0.845 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN
round_cap_outside_surface_conditionSERRATED
thread_size_and_series/type_designator1.000-20 UNEF OR 1.000-20 NEF
NSN5340-00-044-5828
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6840363-16 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
ROUND CAP OUTSIDE SURFACE CONDITION: SERRATED
THREAD CLASS: 2B
MATERIAL: ALUMINUM
DESIGN TYPE: THREADED
INSIDE DIAMETER LENGTH: 0.845 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1.000-20 UNEF OR 1.000-20 NEF
OVERALL DIAMETER: 0.942 INCHES MINIMUM AND 0.944 INCHES MAXIMUM IN
SURFACE TREATMENT: ANODIZE
TECHNICAL CHARACTERISTICS (FLIS)
ROUND CAP OUTSIDE SURFACE CONDITIONSERRATED
THREAD CLASS2B
MATERIALALUMINUM
DESIGN TYPETHREADED
INSIDE DIAMETER LENGTH0.845 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN
THREAD SIZE AND SERIES/TYPE DESIGNATOR1.000-20 UNEF OR 1.000-20 NEF
OVERALL DIAMETER0.942 INCHES MINIMUM AND 0.944 INCHES MAXIMUM IN
SURFACE TREATMENTANODIZE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
SM71-116Upgraded Successor
successor cross-reference
successor
EP16Upgraded Successor
successor cross-reference
successor
EP42SInterchangeable
interchangeable cross-reference
interchangeable
6472382Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6840363-16?
6840363-16 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 6840363-16?
There are 4 known substitutes for 6840363-16: SM71-116, EP16, EP42S and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6840363-16?
6840363-16 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-044-5828. This indicates validated use in U.S. government and defense supply chains.
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