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MS21241-20C32 — BEARING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

MS21241-20C32: BEARING,SLEEVE.

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE INNER LAYER, corner_shape: UNDERCUT LEFT FLANGE BODY CORNER, flange_width: 0.0887 INCHES MINIMUM AND 0.0937 INCHES MAXIMUM IN, overall_length: 1.0787 INCHES MINIMUM AND 1.0937 INCHES MAXIMUM IN, special_features: PLASTIC LINER BONDED TO LEFT END SURFACE OF FLANGE, style_designator: SOLID, EXTERNAL FLANGE ONE END. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-121-2807, 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
MS21241-20C32
NSN: 3120-01-121-2807
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE INNER LAYER
corner_shapeUNDERCUT LEFT FLANGE BODY CORNER
flange_width0.0887 INCHES MINIMUM AND 0.0937 INCHES MAXIMUM IN
overall_length1.0787 INCHES MINIMUM AND 1.0937 INCHES MAXIMUM IN
special_featuresPLASTIC LINER BONDED TO LEFT END SURFACE OF FLANGE
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter1.2505 INCHES MINIMUM AND 1.2515 INCHES MAXIMUM IN
body_outside_diameter1.4393 INCHES MINIMUM AND 1.4398 INCHES MAXIMUM IN
flange_outside_diameter1.9800 INCHES MINIMUM AND 2.0000 INCHES MAXIMUM IN
material_document_and_classificationAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OUTER LAYER
NSN3120-01-121-2807
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MS21241-20C32 · 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 INSIDE RIGHT CORNER
•
FLANGE OUTSIDE DIAMETER: 1.9800 INCHES MINIMUM AND 2.0000 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 1.4393 INCHES MINIMUM AND 1.4398 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
CORNER SHAPEUNDERCUT LEFT FLANGE BODY CORNER
FLANGE OUTSIDE DIAMETER1.9800 INCHES MINIMUM AND 2.0000 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER1.4393 INCHES MINIMUM AND 1.4398 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OUTER LAYER
OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938
SUBSTITUTES & CROSS-REFERENCES 5
AS81934/2Reference document
Same NSN cross-reference
Reference document — Secondary reference
M81934/2-20C032Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-B-81934/2-20C32Reference document
Same NSN cross-reference
Reference document — Secondary reference
KRJ20-UDSB-032Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
8001-018-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS21241-20C32?
MS21241-20C32 is a BEARING,SLEEVE.
What parts can replace MS21241-20C32?
There are 5 known substitutes for MS21241-20C32: AS81934/2, M81934/2-20C032, MIL-B-81934/2-20C32 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21241-20C32?
MS21241-20C32 is cataloged in the U.S. Government catalog under NSN 3120-01-121-2807. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.