PartsTable
Technical Data Sheet
PartsTable / COMPONENT / MS28775-249
MS28775-249 ✓ 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,SLEEVE is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, temp_rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF, hardness_rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM, peripheral_diameter: 5.137 INCHES NOMINAL IN, center_hole_diameter: 4.844 INCHES MINIMUM AND 4.874 INCHES MAXIMUM IN, elongation_percentage: 160 MAXIMUM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-826-5630, 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
MS28775-249
NSN: 3120-00-826-5630
FSC: 3120
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
hardness_rating70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM
peripheral_diameter5.137 INCHES NOMINAL IN
center_hole_diameter4.844 INCHES MINIMUM AND 4.874 INCHES MAXIMUM IN
elongation_percentage160 MAXIMUM
special_test_featuresSPECIAL QUALITY CONTROL TESTING
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
departure_from_cited_documentAS MODIFIED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS
criticality_code_justificationZZZW
NSN3120-00-826-5630
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MS28775-249 · 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
•
LUBRICANT ACCOMMODATION STYLE: INDENTED BALL
•
MATERIAL: OIL LUBRICATING LUBRICATION
•
STYLE DESIGNATOR: SPLIT, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 2.5020 INCHES MINIMUM AND 2.5040 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 2.6870 INCHES MINIMUM AND 2.6880 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CORNER SHAPESQUARE ALL CORNERS
LUBRICANT ACCOMMODATION STYLEINDENTED BALL
MATERIALOIL LUBRICATING LUBRICATION
MATERIALSTEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1009 OUTER LAYER
STYLE DESIGNATORSPLIT, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH1.1250 INCHES NOMINAL IN
BODY INSIDE DIAMETER2.5020 INCHES MINIMUM AND 2.5040 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER2.6870 INCHES MINIMUM AND 2.6880 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
ARP568-249MILP5 516Interchangeable
interchangeable cross-reference
interchangeable
AS28775Interchangeable
interchangeable cross-reference
interchangeable
5331PL0810012Interchangeable
interchangeable cross-reference
interchangeable
SMA1407-364Interchangeable
interchangeable cross-reference
interchangeable
2046-080Interchangeable
interchangeable cross-reference
interchangeable
SM-B-414543Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS28775-249?
MS28775-249 is a BEARING,SLEEVE.
What parts can replace MS28775-249?
There are 11 known substitutes for MS28775-249: ARP568-249MILP5 516, AS28775, 5331PL0810012 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS28775-249?
MS28775-249 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-826-5630. 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