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PartsTable / COMPONENT / AS5999
AS5999 ✓ 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 ROLLER,LINEAR-ROTARY MOTION is a the manufacturer industrial component. Key specifications include material: STEEL COMP E52100, face_width: 0.189 INCHES NOMINAL IN, bore_length: 0.312 INCHES NOMINAL IN, hub_diameter: 0.500 INCHES NOMINAL IN, outside_diameter: 1.250 INCHES NOMINAL IN, bore_inside_diameter: 0.3140 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 3120-00-118-8607, 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
AS5999
NSN: 3120-00-118-8607
FSC: 3120
CAGE: 12776 — AIRCRAFT SUPPLIES (USA)
SPECIFICATIONS
materialSTEEL COMP E52100
face_width0.189 INCHES NOMINAL IN
bore_length0.312 INCHES NOMINAL IN
hub_diameter0.500 INCHES NOMINAL IN
outside_diameter1.250 INCHES NOMINAL IN
bore_inside_diameter0.3140 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
material_document_and_classificationAMS 6440 ASSN STD SINGLE MATERIAL RESPONSE
NSN3120-00-118-8607
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: AS5999 · 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
•
BORE INSIDE DIAMETER: 0.3140 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP E52100
•
FACE WIDTH: 0.189 INCHES NOMINAL IN
•
HUB DIAMETER: 0.500 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
OUTSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6440 ASSN STD SINGLE MATERIAL RESPONSE
•
BORE LENGTH: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BORE INSIDE DIAMETER0.3140 INCHES NOMINAL IN
MATERIALSTEEL COMP E52100
FACE WIDTH0.189 INCHES NOMINAL IN
HUB DIAMETER0.500 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
OUTSIDE DIAMETER1.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6440 ASSN STD SINGLE MATERIAL RESPONSE
BORE LENGTH0.312 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
5999Interchangeable
interchangeable cross-reference
interchangeable
539122Interchangeable
interchangeable cross-reference
interchangeable
733581Interchangeable
interchangeable cross-reference
interchangeable
958Interchangeable
interchangeable cross-reference
interchangeable
8624Interchangeable
interchangeable cross-reference
interchangeable
E174CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS5999?
AS5999 is a ROLLER,LINEAR-ROTARY MOTION.
What parts can replace AS5999?
There are 7 known substitutes for AS5999: 5999, 539122, 733581 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS5999?
AS5999 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-118-8607. 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