The Bushing,sleeve, cataloged under National Stock Number 3120-00-902-0533, 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 Is Div Northrop Grumman Aeronautics Systems. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-00-902-0533 |
| Primary Part Number | 3-51115-1 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| Status | ACTIVE |
| Interior Flange Hole Diameter | 1.7800 INCHES MINIMUM AND 1.8200 INCHES MAXIMUM IN |
| Surface Finish | 125.0 MICROINCHES INTERMEDIATE LAYER |
| Corner Shape | SQUARE INSIDE RIGHT CORNER |
| Corner Shape | RELIEF GROOVE LEFT FLANGE BODY CORNER |
| Corner Shape | SQUARE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE OUTSIDE LEFT CORNER |
| Corner Shape | SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Flange Outside Diameter | 2.3140 INCHES MINIMUM AND 2.3340 INCHES MAXIMUM IN |
| Body Outside Diameter | 2.1930 INCHES MINIMUM AND 2.1940 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END, INTERIOR FLANGE(S) NOT LOCATED AT EITHER END |
| Material Document and Classification | MIL-T-6736,TY 1,COND N MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Interior Flange Left End to Centerline Distance | 0.3920 INCHES MINIMUM AND 0.4320 INCHES MAXIMUM IN |
| Interior Flange Width | 0.1540 INCHES NOMINAL IN |
| Body Inside Diameter | 1.9860 INCHES MINIMUM AND 1.9900 INCHES MAXIMUM IN |
| Antirotation/lubrication Type and Quantity | 2 HOLE |
| Flange Width | 0.0800 INCHES MINIMUM AND 0.0900 INCHES MAXIMUM IN |
| Material | STEEL COMP 4130 OVERALL |
| Hole Diameter | 0.2210 INCHES NOMINAL FIRST 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 |
|---|---|
| 3-51115-1 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| 3-51115-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
NSN 3120-00-902-0533 is a Bushing,sleeve, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-00-902-0533 has 1 manufacturer part number on file: 3-51115-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems).
Key specifications for 3-51115-1: Interior Flange Hole Diameter: 1.7800 INCHES MINIMUM AND 1.8200 INCHES MAXIMUM IN; Surface Finish: 125.0 MICROINCHES INTERMEDIATE LAYER; Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: RELIEF GROOVE LEFT FLANGE BODY CORNER. 19 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.