Plate, Retaining, Bearing3110-00-421-2491

NSN 3110-00-421-2491 · NIIN 004212491

FSC 3110 — Bearings, Antifriction, Unmounted · FSG 31 — Bearings

Government record, cited

Also searched as 3110-00-421-2491 · 3110004212491 · NIIN 004212491 · 00-421-2491 · FSC 3110 Bearings, Antifriction, Unmounted

Nearby stock numbers ← 3110-00-421-2474 Ball, Bearing · 3110-00-421-4593 →

3110-00-421-2491 — Bearings, Antifriction, Unmounted

Features

Plate,retaining,bearing — FSC 3110
Bolt Circle Hole Quantity: 6
Overall Thickness: 0.125 INCHES NOMINAL IN
Material Document and Classification: QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Mounting Hole Diameter: 0.150 INCHES NOMINAL IN
Outside Diameter: 6.770 INCHES NOMINAL IN
Aperture Diameter: 5.500 INCHES NOMINAL IN
Material: ALUMINUM ALLOY 6061 OVERALL

Identification

NSN: 3110-00-421-2491
NIIN: 004212491
FSC: 3110 — Bearings, Antifriction, Unmounted
FSG: 31 — Bearings

General Description

The Plate,retaining,bearing, cataloged under National Stock Number 3110-00-421-2491, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3110-00-421-2491
Item Name	Plate,retaining,bearing
FSC / FSG	3110 / 31 — Bearings, Antifriction, Unmounted
Status	ACTIVE
Bolt Circle Hole Quantity	6
Overall Thickness	0.125 INCHES NOMINAL IN
Material Document and Classification	QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Mounting Hole Diameter	0.150 INCHES NOMINAL IN
Outside Diameter	6.770 INCHES NOMINAL IN
Aperture Diameter	5.500 INCHES NOMINAL IN
Material	ALUMINUM ALLOY 6061 OVERALL

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
710573-1	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

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

BEARING,ROLLER,NEEDLE

3110-00-001-1937

BEARING,ROLLER,NEEDLE

3110-00-001-1937

BEARING,ROLLER,NEEDLE

3110-00-001-1938

BEARING,BALL,AIRFRAME

3110-00-001-4661

CONE AND ROLLERS,TAPERED ROLLER

3110-00-001-4662

CUP,TAPERED ROLLER BEARING

3110-00-001-4689

BEARING,BALL,ANNULAR

3110-00-001-4722

BEARING,BALL,ANNULAR

Frequently Asked Questions

What is NSN 3110-00-421-2491?

NSN 3110-00-421-2491 is a Plate,retaining,bearing, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.

What are the specifications of 3110-00-421-2491?

Key specifications for 3110-00-421-2491: Bolt Circle Hole Quantity: 6; Overall Thickness: 0.125 INCHES NOMINAL IN; Material Document and Classification: QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Mounting Hole Diameter: 0.150 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.

Is NSN 3110-00-421-2491 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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