1221M — BEARING,BALL,ANNULAR

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

1221M: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_angle: 15.0 DEGREES NOMINAL, overall_length: 270.0 MILLIMETERS NOMINAL MM, style_designator: OFFSET, surface_treatment: CHROMIUM OVERALL, wrenching_surface_size: 21.0 MILLIMETERS NOMINAL BOTH ENDS MM. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-155-6811, 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

1221M

NSN: 3110-00-155-6811
NIINs: 001556811, 013486837
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 21760 — SCHATZ BEARING CORPORATION DBA SCHATZ BEARING CORP (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_angle	15.0 DEGREES NOMINAL
overall_length	270.0 MILLIMETERS NOMINAL MM
style_designator	OFFSET
surface_treatment	CHROMIUM OVERALL
wrenching_surface_size	21.0 MILLIMETERS NOMINAL BOTH ENDS MM
wrenching_surface_shape	OVAL FIRST END INTERNAL
wrenching_end_offset_angle	15.0 DEGREES NOMINAL
NSN	3110-00-155-6811

COMPONENT DIAGRAM

KEY FEATURES

•

INTERNAL FIT-UP DESIGNATION: STANDARD

•

SURFACE FINISH: GROUND

•

STYLE DESIGNATOR: LOADING GROOVE, NON-SEPARABLE

•

OVERALL OUTSIDE DIAMETER: 190.00 MILLIMETERS NOMINAL MM

•

BORE SHAPE: STRAIGHT

•

LOAD DIRECTION: RADIAL

•

STANDARD TOLERANCE DESIGNATION: ABEC NO.1

TECHNICAL CHARACTERISTICS

INTERNAL FIT-UP DESIGNATION	STANDARD
SURFACE FINISH	GROUND
STYLE DESIGNATOR	LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH	36.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER	190.00 MILLIMETERS NOMINAL MM
BORE SHAPE	STRAIGHT
LOAD DIRECTION	RADIAL
STANDARD TOLERANCE DESIGNATION	ABEC NO.1
BORE DIAMETER	105.00 MILLIMETERS NOMINAL MM
MATERIAL	STEEL OUTER RING

SUBSTITUTES & CROSS-REFERENCES 7

6221MAXSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

85360Reference document

Same NSN cross-reference

Reference document — Secondary reference

32T166Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

1221Reference document

Same NSN cross-reference

Reference document — Secondary reference

299762-4Reference document

Same NSN cross-reference

Reference document — Secondary reference

M456Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 1221M?

1221M is a BEARING,BALL,ANNULAR.

What parts can replace 1221M?

There are 7 known substitutes for 1221M: 6221MAX, 85360, 32T166 and 4 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 1221M?

1221M is cataloged in the U.S. Government catalog under NSN 3110-00-155-6811. This indicates validated use in U.S. government and defense supply chains.

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1221M — BEARING,BALL,ANNULAR

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