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Technical Data Sheet
PartsTable / COMPONENT / 8687049
8687049 ✓ 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 RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, special_features: MOUNTING HOLE CSK 9/16 IN. DIA BY 82 DEG IN, attachment_method: ROUND HOLE, rim_surface_width: 0.062 INCHES NOMINAL IN, peripheral_diameter: 5.875 INCHES NOMINAL IN, center_hole_diameter: 3.375 INCHES NOMINAL 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 5330-00-678-6129, 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
8687049
NSN: 5330-00-678-6129
FSC: 5330
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
special_featuresMOUNTING HOLE CSK 9/16 IN. DIA BY 82 DEG IN
attachment_methodROUND HOLE
rim_surface_width0.062 INCHES NOMINAL IN
peripheral_diameter5.875 INCHES NOMINAL IN
center_hole_diameter3.375 INCHES NOMINAL IN
cross-sectional_height0.375 INCHES NOMINAL IN
attachment_hole_diameter0.281 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
cross-sectional_thickness0.750 INCHES NOMINAL IN
attachment_feature_quantity1
cross-sectional_shape_styleFLANGE
attachment_feature_circle_diameter3.875 INCHES MINIMUM AND 3.891 INCHES MAXIMUM SINGLE CIRCLE IN
NSN5330-00-678-6129
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8687049 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
•
CROSS-SECTIONAL HEIGHT: 0.375 INCHES NOMINAL IN
•
PERIPHERAL DIAMETER: 5.875 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.750 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 3.375 INCHES NOMINAL IN
•
RIM SURFACE WIDTH: 0.062 INCHES NOMINAL IN
•
ATTACHMENT FEATURE CIRCLE DIAMETER: 3.875 INCHES MINIMUM AND 3.891 INCHES MAXIMUM SINGLE CIRCLE IN
•
CROSS-SECTIONAL SHAPE STYLE: FLANGE
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.375 INCHES NOMINAL IN
PERIPHERAL DIAMETER5.875 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.750 INCHES NOMINAL IN
CENTER HOLE DIAMETER3.375 INCHES NOMINAL IN
SPECIAL FEATURESMOUNTING HOLE CSK 9/16 IN. DIA BY 82 DEG IN
RIM SURFACE WIDTH0.062 INCHES NOMINAL IN
ATTACHMENT FEATURE CIRCLE DIAMETER3.875 INCHES MINIMUM AND 3.891 INCHES MAXIMUM SINGLE CIRCLE IN
CROSS-SECTIONAL SHAPE STYLEFLANGE
MATERIALSTEEL OVERALL
ATTACHMENT HOLE DIAMETER0.281 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
11B5090146-3Interchangeable
interchangeable cross-reference
interchangeable
20054Interchangeable
interchangeable cross-reference
interchangeable
A-A-2545Interchangeable
interchangeable cross-reference
interchangeable
110 27/32Interchangeable
interchangeable cross-reference
interchangeable
53154Interchangeable
interchangeable cross-reference
interchangeable
60054Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8687049?
8687049 is a RETAINER,PACKING.
What parts can replace 8687049?
There are 19 known substitutes for 8687049: 11B5090146-3, 20054, A-A-2545 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8687049?
8687049 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-678-6129. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026