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3221921 — BEARING,ROLLER,NEEDLE

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

3221921: BEARING,ROLLER,NEEDLE.

The BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1095 ROLLER, bore_diameter: 0.1881 INCHES MINIMUM AND 0.1886 INCHES MAXIMUM IN, overall_width: 0.3650 INCHES MINIMUM AND 0.3700 INCHES MAXIMUM IN, alignment_type: RIGID, surface_finish: GROUND, style_designator: NON-SEPARABLE, CLOSED END, DRAWN SHELL. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-307-4738, 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
3221921
NSN: 3110-01-307-4738
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 1095 ROLLER
bore_diameter0.1881 INCHES MINIMUM AND 0.1886 INCHES MAXIMUM IN
overall_width0.3650 INCHES MINIMUM AND 0.3700 INCHES MAXIMUM IN
alignment_typeRIGID
surface_finishGROUND
style_designatorNON-SEPARABLE, CLOSED END, DRAWN SHELL
overall_outside_diameter0.3438 INCHES MINIMUM IN
material_document_and_classificationFED-STD-66 FED STD 1ST MATERIAL RESPONSE ROLLER
NSN3110-01-307-4738
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 3221921 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-SEPARABLE, CLOSED END, DRAWN SHELL
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED-STD-66 FED STD 1ST MATERIAL RESPONSE ROLLER
•
OVERALL OUTSIDE DIAMETER: 0.3438 INCHES MINIMUM IN
•
ALIGNMENT TYPE: RIGID
•
BORE DIAMETER: 0.1881 INCHES MINIMUM AND 0.1886 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE FINISHGROUND
STYLE DESIGNATORNON-SEPARABLE, CLOSED END, DRAWN SHELL
MATERIAL DOCUMENT AND CLASSIFICATIONFED-STD-66 FED STD 1ST MATERIAL RESPONSE ROLLER
MATERIAL DOCUMENT AND CLASSIFICATIONFED-STD-66 FED STD 2ND MATERIAL RESPONSE SHELL
OVERALL WIDTH0.3650 INCHES MINIMUM AND 0.3700 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER0.3438 INCHES MINIMUM IN
ALIGNMENT TYPERIGID
BORE DIAMETER0.1881 INCHES MINIMUM AND 0.1886 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1012 SHELL
MATERIALSTEEL COMP 1095 ROLLER
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3221921?
3221921 is a BEARING,ROLLER,NEEDLE.
What is the NSN for 3221921?
3221921 is cataloged in the U.S. Government catalog under NSN 3110-01-307-4738. This indicates validated use in U.S. government and defense supply chains.
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