X3991 — BEARING,BALL,ANNULAR

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

X3991: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 3110-00-153-8751, 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

X3991

NSN: 3110-00-153-8751
NIINs: 001538751, 010213538
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 24975 — PRESTOLITE ELECTRIC INC (USA)

SPECIFICATIONS

Part Number	X3991
NSN	3110-00-153-8751

COMPONENT DIAGRAM

SUBSTITUTES & CROSS-REFERENCES 2

A45398Reference document

Same NSN cross-reference

Reference document — Secondary reference

3110001538751Reference document

Same NSN cross-reference

Reference document — Informative reference only

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 X3991?

X3991 is a BEARING,BALL,ANNULAR.

What parts can replace X3991?

There are 2 known substitutes for X3991: A45398, 3110001538751. Substitute compatibility should be verified for your specific system.

What is the NSN for X3991?

X3991 is cataloged in the U.S. Government catalog under NSN 3110-00-153-8751. This indicates validated use in U.S. government and defense supply chains.

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X3991 — BEARING,BALL,ANNULAR

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