The Plate,retaining,bearing, cataloged under National Stock Number 3110-01-449-3179, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Lake Shore Systems, Inc.. Government technical data includes 9 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.
| Parameter | Value |
|---|---|
| NSN | 3110-01-449-3179 |
| Primary Part Number | 2B1-05819 |
| Item Name | Plate,retaining,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Bolt Circle Hole Quantity | 4 |
| Mounting Hole Type | ROUND, UNTHREADED |
| Mounting Hole Arrangement Style | SINGLE BOLT HOLE CIRCLE |
| Overall Thickness | 0.9538 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Mounting Hole Diameter | 0.5625 INCHES NOMINAL IN |
| Outside Diameter | 7.5000 INCHES NOMINAL IN |
| Aperture Diameter | 3.4980 INCHES MINIMUM AND 3.5020 INCHES MAXIMUM IN |
| Outside Raised Surface Diameter | 4.7500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2B1-05819 PRIMARY | Lake Shore Systems, Inc. (USA) |
NSN 3110-01-449-3179 is a Plate,retaining,bearing, manufactured by Lake Shore Systems, Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-449-3179 has 1 manufacturer part number on file: 2B1-05819 (Lake Shore Systems, Inc.).
Key specifications for 2B1-05819: Bolt Circle Hole Quantity: 4; Mounting Hole Type: ROUND, UNTHREADED; Mounting Hole Arrangement Style: SINGLE BOLT HOLE CIRCLE; Overall Thickness: 0.9538 INCHES NOMINAL IN. 9 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.