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Technical Data Sheet
PartsTable / COMPONENT / MIL-B-5687
MIL-B-5687 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include length: 0.250 FEET NOMINAL FT, material: COPPER ALLOY 260 OVERALL, flange_width: 0.0938 INCHES NOMINAL IN, overall_length: 0.8700 INCHES MINIMUM AND 0.8800 INCHES MAXIMUM IN, basic_shape_style: ROUND W/ CORE, body_inside_diameter: 0.3760 INCHES MINIMUM AND 0.3770 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 3120-00-020-9548, 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
MIL-B-5687
NSN: 3120-00-020-9548
FSC: 3120
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
length0.250 FEET NOMINAL FT
materialCOPPER ALLOY 260 OVERALL
flange_width0.0938 INCHES NOMINAL IN
overall_length0.8700 INCHES MINIMUM AND 0.8800 INCHES MAXIMUM IN
basic_shape_styleROUND W/ CORE
body_inside_diameter0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
body_outside_diameter0.5010 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN
end_item_identificationOPERATIONAL FLIGHT SIMULATOR,SPERRY CORP,MODEL F/A-18OFT
flange_outside_diameter0.6850 INCHES MINIMUM AND 0.6900 INCHES MAXIMUM IN
cross_section_inside_diameter1.000 INCHES NOMINAL IN
departure_from_cited_documentMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
criticality_code_justificationZZZW
NSN3120-00-020-9548
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MIL-B-5687 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
BODY OUTSIDE DIAMETER: 0.3140 INCHES MINIMUM AND 0.3150 INCHES MAXIMUM IN
•
FLANGE OUTSIDE DIAMETER: 0.3540 INCHES MINIMUM AND 0.3640 INCHES MAXIMUM IN
•
FLANGE WIDTH: 0.0280 INCHES MINIMUM AND 0.0310 INCHES MAXIMUM IN
•
CORNER SHAPE: SQUARE OUTSIDE LEFT CORNER
•
BODY INSIDE DIAMETER: 0.1562 INCHES MINIMUM AND 0.1572 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER0.3140 INCHES MINIMUM AND 0.3150 INCHES MAXIMUM IN
FLANGE OUTSIDE DIAMETER0.3540 INCHES MINIMUM AND 0.3640 INCHES MAXIMUM IN
FLANGE WIDTH0.0280 INCHES MINIMUM AND 0.0310 INCHES MAXIMUM IN
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
OVERALL LENGTH0.1200 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
CORNER SHAPESQUARE INSIDE LEFT CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
BODY INSIDE DIAMETER0.1562 INCHES MINIMUM AND 0.1572 INCHES MAXIMUM IN
MATERIALOIL LUBRICATING LUBRICATION
MATERIALCOPPER ALLOY OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES

No verified substitutes available.

LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-B-5687?
MIL-B-5687 is a BEARING,WASHER,THRUST.
What is the NSN for MIL-B-5687?
MIL-B-5687 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-020-9548. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026