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8687 ✓ 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 KEY BLANK is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: ROUND, nut_diameter: 0.872 INCHES MINIMUM AND 0.878 INCHES MAXIMUM IN, thread_class: 3B, nut_thickness: 0.184 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN, thread_series: UNEF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-473-5968, 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
8687
NSN: 5340-00-473-5968
FSC: 5340
CAGE: 14608 — EMHART INDUSTRIES INC CORBIN CABINET LOCK HARDWARE DIV (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleROUND
nut_diameter0.872 INCHES MINIMUM AND 0.878 INCHES MAXIMUM IN
thread_class3B
nut_thickness0.184 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
thread_seriesUNEF
hardness_rating40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
countersink_angle89.5 DEGREES MINIMUM AND 90.5 DEGREES MAXIMUM NUT
drive_point_depth0.057 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
drive_point_width0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
NSN5340-00-473-5968
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8687 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
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESBRASS OR NICKEL SILVER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
20FInterchangeable
interchangeable cross-reference
interchangeable
751E2035Interchangeable
interchangeable cross-reference
interchangeable
SPRW15F20000Interchangeable
interchangeable cross-reference
interchangeable
634123-10Interchangeable
interchangeable cross-reference
interchangeable
SP266-3Interchangeable
interchangeable cross-reference
interchangeable
637460PC3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8687?
8687 is a KEY BLANK.
What parts can replace 8687?
There are 16 known substitutes for 8687: 20F, 751E2035, SPRW15F20000 and 13 more. Substitute compatibility should be verified for your specific system.
Is 8687 still available?
8687 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