NSN 3110-00-421-4613 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-421-4613. Manufacturer of record part number: B8399.
Mounting Hole Arrangement Style: SINGLE BOLT HOLE CIRCLE
Style Designator: ROUND
Mounting Hole Diameter: 0.281 INCHES NOMINAL IN
Outside Diameter: 3.969 INCHES NOMINAL IN
Aperture Diameter: 1.880 INCHES NOMINAL IN
Identification
NSN: 3110-00-421-4613
NIIN: 004214613
FSC: 3110 — Bearings, Antifriction, Unmounted
FSG: 31 — Bearings
Primary part number: B8399
Manufacturer: Avtron Aerospace Inc
General Description
The Plate,retaining,bearing, cataloged under National Stock Number 3110-00-421-4613, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Avtron Aerospace Inc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
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 3110-00-421-4613?
NSN 3110-00-421-4613 is a Plate,retaining,bearing, manufactured by Avtron Aerospace Inc, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
What part numbers are listed for NSN 3110-00-421-4613?
NSN 3110-00-421-4613 has 1 manufacturer part number on file: B8399 (Avtron Aerospace Inc).
What are the specifications of B8399?
Key specifications for B8399: Bolt Circle Hole Quantity: 8; Mounting Hole Type: ROUND, UNTHREADED; Mounting Hole Arrangement Style: SINGLE BOLT HOLE CIRCLE; Style Designator: ROUND. 8 specifications are documented in the U.S. Government catalog.
Is NSN 3110-00-421-4613 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.