The Plate,retaining,bearing, cataloged under National Stock Number 3110-01-448-5540, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 14 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 | 3110-01-448-5540 |
| Primary Part Number | 65391-11052-108 |
| Item Name | Plate,retaining,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Length | 1.5000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-13924, CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Raised Surface Height | 0.0500 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN |
| Bolt Circle Hole Quantity | 2 |
| Mounting Hole Type | ROUND, UNTHREADED |
| Overall Thickness | 0.2560 INCHES MINIMUM AND 0.2660 INCHES MAXIMUM IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | MIL-S-18729, COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Mounting Hole Diameter | 0.2650 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RAISED SURFACE W/O APERTURE |
| Surface Treatment | OXIDE OVERALL |
| Width | 1.0270 INCHES NOMINAL IN |
| Outside Raised Surface Diameter | 0.4380 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 |
| Part Number | Manufacturer |
|---|---|
| 65391-11052-108 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 3110-01-448-5540 is a Plate,retaining,bearing, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-448-5540 has 1 manufacturer part number on file: 65391-11052-108 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 65391-11052-108: Length: 1.5000 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-13924, CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Raised Surface Height: 0.0500 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN; Bolt Circle Hole Quantity: 2. 14 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.