The Plate,retaining,bearing, cataloged under National Stock Number 3110-00-757-2228, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-757-2228 |
| Item Name | Plate,retaining,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Status | ACTIVE |
| Width Across Flats | 2.770 INCHES MINIMUM AND 2.830 INCHES MAXIMUM IN |
| Mounting Hole Type | ROUND, UNTHREADED |
| Mounting Hole Arrangement Style | FOUR HOLES |
| Overall Thickness | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM |
| Style Designator | FOUR FLATS |
| Material Document and Classification | MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Mounting Hole Diameter | 0.280 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN |
| Distance From Horizontal Centerline to Center of Right Hole | 1.105 INCHES NOMINAL IN |
| Length Across Flats | 2.770 INCHES MINIMUM AND 2.830 INCHES MAXIMUM IN |
| Distance From Vertical Centerline to Center of Right Hole | 1.105 INCHES NOMINAL IN |
| Material | STEEL COMP 4130 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 |
|---|---|
| 693263 | 3/2 Design control — primary reference U.S. Government activity |
| 693263 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
| 693263 | C/1 Advisory reference — outside the item-of-supply concept Honeywell International Inc. Div Aerospace - Torrance |
NSN 3110-00-757-2228 is a Plate,retaining,bearing, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
Key specifications for 3110-00-757-2228: Width Across Flats: 2.770 INCHES MINIMUM AND 2.830 INCHES MAXIMUM IN; Mounting Hole Type: ROUND, UNTHREADED; Mounting Hole Arrangement Style: FOUR HOLES; Overall Thickness: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN. 12 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.