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Technical Data Sheet
PartsTable / COMPONENT / 31-2122-5
31-2122-5 ✓ 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 BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360 OVERALL, corner_shape: SQUARE ALL CORNERS, flange_width: 0.0200 INCHES MINIMUM AND 0.0250 INCHES MAXIMUM IN, overall_length: 0.0820 INCHES MINIMUM AND 0.0840 INCHES MAXIMUM IN, style_designator: SOLID, EXTERNAL FLANGE ONE END, INTERNAL FLANGE ONE END, body_inside_diameter: 0.2220 INCHES MINIMUM AND 0.2260 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 3120-00-245-3863, 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
31-2122-5
NSN: 3120-00-245-3863
FSC: 3120
CAGE: 74868 — AMPHENOL CORPORATION DIV AMPHENOL RF (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OVERALL
corner_shapeSQUARE ALL CORNERS
flange_width0.0200 INCHES MINIMUM AND 0.0250 INCHES MAXIMUM IN
overall_length0.0820 INCHES MINIMUM AND 0.0840 INCHES MAXIMUM IN
style_designatorSOLID, EXTERNAL FLANGE ONE END, INTERNAL FLANGE ONE END
body_inside_diameter0.2220 INCHES MINIMUM AND 0.2260 INCHES MAXIMUM IN
body_outside_diameter0.2760 INCHES MINIMUM AND 0.2780 INCHES MAXIMUM IN
flange_outside_diameter0.2940 INCHES MINIMUM AND 0.2980 INCHES MAXIMUM IN
left_internal_flange_width0.0280 INCHES MINIMUM AND 0.0300 INCHES MAXIMUM IN
left_internal_flange_hole_diameter0.0740 INCHES MINIMUM AND 0.0780 INCHES MAXIMUM IN
NSN3120-00-245-3863
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 31-2122-5 · 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
•
STYLE DESIGNATOR: SOLID, EXTERNAL FLANGE ONE END, INTERNAL FLANGE ONE END
•
CORNER SHAPE: SQUARE ALL CORNERS
•
MATERIAL: COPPER ALLOY 360 OVERALL
•
LEFT INTERNAL FLANGE HOLE DIAMETER: 0.0740 INCHES MINIMUM AND 0.0780 INCHES MAXIMUM IN
•
FLANGE WIDTH: 0.0200 INCHES MINIMUM AND 0.0250 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 0.2760 INCHES MINIMUM AND 0.2780 INCHES MAXIMUM IN
•
FLANGE OUTSIDE DIAMETER: 0.2940 INCHES MINIMUM AND 0.2980 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.0820 INCHES MINIMUM AND 0.0840 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END, INTERNAL FLANGE ONE END
CORNER SHAPESQUARE ALL CORNERS
MATERIALCOPPER ALLOY 360 OVERALL
LEFT INTERNAL FLANGE HOLE DIAMETER0.0740 INCHES MINIMUM AND 0.0780 INCHES MAXIMUM IN
FLANGE WIDTH0.0200 INCHES MINIMUM AND 0.0250 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.2760 INCHES MINIMUM AND 0.2780 INCHES MAXIMUM IN
FLANGE OUTSIDE DIAMETER0.2940 INCHES MINIMUM AND 0.2980 INCHES MAXIMUM IN
LEFT INTERNAL FLANGE WIDTH0.0280 INCHES MINIMUM AND 0.0300 INCHES MAXIMUM IN
BODY INSIDE DIAMETER0.2220 INCHES MINIMUM AND 0.2260 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
95209Interchangeable
interchangeable cross-reference
interchangeable
5EX117Interchangeable
interchangeable cross-reference
interchangeable
711625003103Interchangeable
interchangeable cross-reference
interchangeable
12500763Interchangeable
interchangeable cross-reference
interchangeable
050-000030-116Interchangeable
interchangeable cross-reference
interchangeable
050-000030Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31-2122-5?
31-2122-5 is a BUSHING,SLEEVE.
What parts can replace 31-2122-5?
There are 6 known substitutes for 31-2122-5: 95209, 5EX117, 711625003103 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 31-2122-5?
31-2122-5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-245-3863. 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