The Plate,retaining,bearing, cataloged under National Stock Number 3110-01-240-1344, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-240-1344 |
| Primary Part Number | A51B11524-11 |
| Item Name | Plate,retaining,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| Length | 3.250 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 2,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE APERTURE |
| Surface Treatment Document and Classification | MIL-C-83286 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL EXCLUDING BORE OR APERTURE |
| Raised Surface Height | 0.100 INCHES NOMINAL IN |
| Distance Between Holes Along Length | 2.500 INCHES NOMINAL IN |
| Mounting Hole Type | ROUND, UNTHREADED |
| Mounting Hole Arrangement Style | FOUR HOLES |
| Overall Thickness | 0.210 INCHES NOMINAL IN |
| Distance Between Holes Along Width | 0.875 INCHES NOMINAL IN |
| Style Designator | RECTANGLE |
| Material Document and Classification | QQ-A-250/4 T851 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Mounting Hole Diameter | 0.127 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RAISED SURFACE W/ APERTURE |
| Aperture Diameter | 1.280 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN |
| Distance From Horizontal Centerline to Center of Right Hole | 0.438 INCHES NOMINAL IN |
| Distance From Vertical Centerline to Center of Right Hole | 1.250 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE APERTURE |
| Surface Treatment | PLASTIC POLYURETHANE OVERALL EXCLUDING BORE OR APERTURE |
| Width | 1.830 INCHES NOMINAL IN |
| Test Data Document | 81349-MIL-STD-1949 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.). |
| Outside Raised Surface Diameter | 1.700 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 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 |
|---|---|
| A51B11524-11 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems (USA) |
| A51B1124 PRIMARY | Capy Machine Shop Inc. Dba Capy Machine Shop Inc (USA) |
| Reference | Meaning |
|---|---|
| A51B11524-11 | 7/9 Vendor item drawing reference Northrop Grumman Systems Corporation |
| A51B1124 | 5/9 Secondary reference Whitestone Products Div of Ipco Corp |
| A51B11524-11 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
NSN 3110-01-240-1344 is a Plate,retaining,bearing, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-240-1344 has 2 manufacturer part numbers on file: A51B11524-11 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems), A51B1124 (Capy Machine Shop Inc. Dba Capy Machine Shop Inc).
Key specifications for A51B11524-11: Length: 3.250 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-A-8625,TYPE 2,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE APERTURE; Surface Treatment Document and Classification: MIL-C-83286 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL EXCLUDING BORE OR APERTURE; Raised Surface Height: 0.100 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.