The Plate,retaining,bearing, cataloged under National Stock Number 3110-01-309-4928, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 3110-01-309-4928 |
| Item Name | Plate,retaining,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Status | ACTIVE |
| Countersink Diameter | 0.530 INCHES NOMINAL IN |
| Bolt Circle Hole Quantity | 8 |
| Mounting Hole Type | ROUND, UNTHREADED, COUNTERSUNK |
| Mounting Hole Arrangement Style | SINGLE BOLT HOLE CIRCLE |
| Overall Thickness | 0.250 INCHES NOMINAL IN |
| Hardness Rating | 38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM |
| Style Designator | ROUND |
| Material Document and Classification | AMS 6359 ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Mounting Hole Diameter | 0.280 INCHES MINIMUM AND 0.287 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | FLAT W/APERTURE |
| Outside Diameter | 3.250 INCHES NOMINAL IN |
| Aperture Diameter | 1.690 INCHES MINIMUM AND 1.720 INCHES MAXIMUM IN |
| Mounting Bolt Circle Diameter | 2.500 INCHES NOMINAL IN |
| Countersink Angle | 82.0 DEGREES NOMINAL |
| Material | STEEL COMP 4340 OR STEEL COMP E4340 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 31036-41048 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3110-01-309-4928 is a Plate,retaining,bearing, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
Key specifications for 3110-01-309-4928: Countersink Diameter: 0.530 INCHES NOMINAL IN; Bolt Circle Hole Quantity: 8; Mounting Hole Type: ROUND, UNTHREADED, COUNTERSUNK; Mounting Hole Arrangement Style: SINGLE BOLT HOLE CIRCLE. 15 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.