PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 1287-2
1287-2 ✓ 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

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include material: TIN SINGLE LIGHT SECOND POSITION VERTICAL VERTICAL SPLIT DISPLAY DIVISION B, flow_style: THREE-WAY THREE PORT 180 DEGREE PLUG TURN, slot_width: 0.1250 INCHES NOMINAL FIRST IN, slot_length: 0.2500 INCHES NOMINAL FIRST IN, corner_shape: SQUARE ALL CORNERS, thread_class: 3A FIRST END A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-096-6778, 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
1287-2
NSN: 3120-00-096-6778
FSC: 3120
CAGE: 27315 — MORRIS MATERIAL HANDLING, INC. (USA)
SPECIFICATIONS
materialTIN SINGLE LIGHT SECOND POSITION VERTICAL VERTICAL SPLIT DISPLAY DIVISION B
flow_styleTHREE-WAY THREE PORT 180 DEGREE PLUG TURN
slot_width0.1250 INCHES NOMINAL FIRST IN
slot_length0.2500 INCHES NOMINAL FIRST IN
corner_shapeSQUARE ALL CORNERS
thread_class3A FIRST END A
overall_depth5.00 INCHES NOMINAL IN
overall_width11.50 INCHES NOMINAL IN
conductor_formSTRANDED FOURTH CONDUCTOR
overall_height6.00 INCHES NOMINAL IN
overall_length0.8125 INCHES NOMINAL IN
hardness_rating82.0 BRINELL STANDARD MINIMUM AND 94.0 BRINELL STANDARD MAXIMUM OVERALL
NSN3120-00-096-6778
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 1287-2 · 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
•
CORNER SHAPE: SQUARE ALL CORNERS
•
MATERIAL: COPPER ALLOY INTERNAL SURFACES
•
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 1 SLOT
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
SLOT LENGTH: 0.2500 INCHES NOMINAL FIRST IN
•
BODY INSIDE DIAMETER: 1.7500 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 2.0000 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
CORNER SHAPESQUARE ALL CORNERS
MATERIALCOPPER ALLOY INTERNAL SURFACES
ANTIROTATION/LUBRICATION TYPE AND QUANTITY1 SLOT
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
SLOT LENGTH0.2500 INCHES NOMINAL FIRST IN
BODY INSIDE DIAMETER1.7500 INCHES NOMINAL IN
OVERALL LENGTH0.8120 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER2.0000 INCHES NOMINAL IN
MATERIALOIL LUBRICATING LUBRICATION
LUBRICANT ACCOMMODATION STYLEGROOVED OPEN ONE END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
1287-2Interchangeable
interchangeable cross-reference
interchangeable
1286B2Interchangeable
interchangeable cross-reference
interchangeable
1286A2Interchangeable
interchangeable cross-reference
interchangeable
M13174-1Interchangeable
interchangeable cross-reference
interchangeable
13174-1Interchangeable
interchangeable cross-reference
interchangeable
1770XDMPC9Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1287-2?
1287-2 is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace 1287-2?
There are 11 known substitutes for 1287-2: 1287-2, 1286B2, 1286A2 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1287-2?
1287-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-096-6778. 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