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Technical Data Sheet
PartsTable / O-RING / 499-6
499-6 ✓ Verified by PartsTable
Zyxel · 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 KEY SET,SOCKET HEAD SCREW is a Zyxel industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, shaft_type: ROUND SINGLE ACTUATOR, handle_type: L-STYLE, shaft_length: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM SINGLE ACTUATOR IN, thread_class: 2A SINGLE MOUNTING FACILITY A, physical_form: LIQUID. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-297-9859, 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
499-6
NSN: 5331-00-297-9859
FSC: 5331 — O-RING
CAGE: 71871 — ALFA LAVAL INC (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
shaft_typeROUND SINGLE ACTUATOR
handle_typeL-STYLE
key_quantity9
shaft_length0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM SINGLE ACTUATOR IN
thread_class2A SINGLE MOUNTING FACILITY A
physical_formLIQUID
terminal_typeWIRE LEAD
thread_length0.560 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
container_typeINDEX HOLDER
overall_length3.570 INCHES NOMINAL IN
shaft_diameter0.310 INCHES MINIMUM AND 0.314 INCHES MAXIMUM SINGLE ACTUATOR IN
NSN5331-00-297-9859
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 499-6 MFR: Zyxel ⚠ 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
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CROSS-SECTIONAL HEIGHT: 0.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CROSS-SECTIONAL HEIGHT0.188 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
4996DInterchangeable
interchangeable cross-reference
interchangeable
VC-88153F-1615RInterchangeable
interchangeable cross-reference
interchangeable
11614140-1Interchangeable
interchangeable cross-reference
interchangeable
11614140Interchangeable
interchangeable cross-reference
interchangeable
4996Interchangeable
interchangeable cross-reference
interchangeable
4572Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 499-6?
499-6 is a KEY SET,SOCKET HEAD SCREW manufactured by Zyxel.
What parts can replace 499-6?
There are 11 known substitutes for 499-6: 4996D, VC-88153F-1615R, 11614140-1 and 8 more. Substitute compatibility should be verified for your specific system.
Is 499-6 still available?
499-6 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026