FF12988 PIECE 18 — PLATE,RETAINING,BEARING

✓ Government record, cited

— · TAPERED BEARING

PRODUCT OVERVIEW

FF12988 PIECE 18: PLATE,RETAINING,BEARING.

The PLATE,RETAINING,BEARING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, outside_diameter: 4.468 INCHES MINIMUM AND 4.470 INCHES MAXIMUM IN, aperture_diameter: 2.125 INCHES NOMINAL IN, surface_treatment: CADMIUM AND CADMIUM AND CHROMATE OR CADMIUM AND PHOSPHATE OVERALL, mounting_hole_type: ROUND, THREADED. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-185-2558, 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

FF12988 PIECE 18

NSN: 3110-01-185-2558
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 75477 — FM AF, LLC DBA AMERICAN FAN COMPANY (USA)

SPECIFICATIONS

material	STEEL COMP 303 OVERALL
outside_diameter	4.468 INCHES MINIMUM AND 4.470 INCHES MAXIMUM IN
aperture_diameter	2.125 INCHES NOMINAL IN
surface_treatment	CADMIUM AND CADMIUM AND CHROMATE OR CADMIUM AND PHOSPHATE OVERALL
mounting_hole_type	ROUND, THREADED
bolt_circle_hole_quantity	2
NSN	3110-01-185-2558

COMPONENT DIAGRAM

KEY FEATURES

•

BOLT CIRCLE HOLE QUANTITY: 2

•

MOUNTING HOLE TYPE: ROUND, THREADED

•

OUTSIDE DIAMETER: 4.468 INCHES MINIMUM AND 4.470 INCHES MAXIMUM IN

•

APERTURE DIAMETER: 2.125 INCHES NOMINAL IN

•

SURFACE TREATMENT: CADMIUM AND CADMIUM AND CHROMATE OR CADMIUM AND PHOSPHATE OVERALL

•

MATERIAL: STEEL COMP 303 OVERALL

TECHNICAL CHARACTERISTICS

BOLT CIRCLE HOLE QUANTITY	2
MOUNTING HOLE TYPE	ROUND, THREADED
OUTSIDE DIAMETER	4.468 INCHES MINIMUM AND 4.470 INCHES MAXIMUM IN
APERTURE DIAMETER	2.125 INCHES NOMINAL IN
SURFACE TREATMENT	CADMIUM AND CADMIUM AND CHROMATE OR CADMIUM AND PHOSPHATE OVERALL
MATERIAL	STEEL COMP 303 OVERALL

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 2

1389378-1Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

1389776Reference 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 FF12988 PIECE 18?

FF12988 PIECE 18 is a PLATE,RETAINING,BEARING.

What parts can replace FF12988 PIECE 18?

There are 2 known substitutes for FF12988 PIECE 18: 1389378-1, 1389776. Substitute compatibility should be verified for your specific system.

What is the NSN for FF12988 PIECE 18?

FF12988 PIECE 18 is cataloged in the U.S. Government catalog under NSN 3110-01-185-2558. This indicates validated use in U.S. government and defense supply chains.

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FF12988 PIECE 18 — PLATE,RETAINING,BEARING

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