The Plate,retaining,bearing, cataloged under National Stock Number 3110-01-281-3891, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 22 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 | 3110-01-281-3891 |
| Primary Part Number | 2907569 |
| Item Name | Plate,retaining,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Body Diameter | 1.620 INCHES NOMINAL IN |
| Width Across Flats | 1.860 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 1,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Minor Thickness | 0.630 INCHES NOMINAL IN |
| Distance Between Holes Along Length | 2.000 INCHES NOMINAL IN |
| Mounting Hole Type | ROUND, UNTHREADED |
| Counterbore Diameter | 1.220 INCHES NOMINAL IN |
| Counterbore Depth | 0.620 INCHES NOMINAL IN |
| Mounting Hole Arrangement Style | FOUR HOLES |
| Overall Thickness | 0.880 INCHES NOMINAL IN |
| Distance Between Holes Along Width | 1.280 INCHES NOMINAL IN |
| Style Designator | TWO FLATS |
| Material Document and Classification | QQ-A-250/11,T651 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Mounting Hole Diameter | 0.210 INCHES MINIMUM AND 0.218 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | COUNTERBORED W/ APERTURE |
| Outside Diameter | 2.750 INCHES NOMINAL IN |
| Aperture Diameter | 0.810 INCHES NOMINAL IN |
| Distance From Horizontal Centerline to Center of Right Hole | 0.500 INCHES NOMINAL IN |
| Distance From Vertical Centerline to Center of Right Hole | 1.000 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Body Thickness | 0.250 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 |
|---|---|
| 2907569 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3110-01-281-3891 is a Plate,retaining,bearing, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-281-3891 has 1 manufacturer part number on file: 2907569 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2907569: Body Diameter: 1.620 INCHES NOMINAL IN; Width Across Flats: 1.860 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-A-8625,TYPE 1,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Minor Thickness: 0.630 INCHES NOMINAL IN. 22 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.