The Bearing,plain,rod End, cataloged under National Stock Number 3120-00-159-8506, is classified within Federal Supply Class 3120 (Bearings, Plain, 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 21 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-00-159-8506 |
| Primary Part Number | A51G20510-1 |
| Item Name | Bearing,plain,rod End |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| Shank Thread Length | 1.2500 INCHES NOMINAL IN |
| Bore Center to Shank End Distance | 2.2500 INCHES NOMINAL IN |
| Inner Member Width | 0.2760 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN |
| Hardness Rating | 56.0 ROCKWELL C MINIMUM INNER MEMBER |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM RACE INSERT |
| Outer Member Width | 0.2200 INCHES NOMINAL IN |
| Style Designator | BALL TYPE |
| Thread Diameter | 0.250 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-5000 MIL SPEC ALL MATERIAL RESPONSES ROD END BODY |
| Thread Direction | RIGHT-HAND |
| Shank Style | EXTERNALLY THREADED |
| Surface Treatment | CADMIUM ROD END BODY |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Bore Diameter | 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| Material | STEEL COMP 440C INNER MEMBER |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE OUTSIDE DIAMETER SURFACE OF FLANGE |
| Material | STEEL COMP 410 OR STEEL COMP 630 RACE INSERT |
| Material | STEEL COMP 4340 OR STEEL COMP E4340 ROD END BODY |
| Thread Series Designator | UNF |
| Outer Member Outside Diameter | 0.9600 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 |
|---|---|
| A51G20510-1 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| A51G20510-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| A51G20510-1 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation |
NSN 3120-00-159-8506 is a Bearing,plain,rod End, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-00-159-8506 has 1 manufacturer part number on file: A51G20510-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems).
Key specifications for A51G20510-1: Shank Thread Length: 1.2500 INCHES NOMINAL IN; Bore Center to Shank End Distance: 2.2500 INCHES NOMINAL IN; Inner Member Width: 0.2760 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN; Hardness Rating: 56.0 ROCKWELL C MINIMUM INNER MEMBER. 21 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.