The Bushing,sleeve, cataloged under National Stock Number 3120-01-528-9591, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 8 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-528-9591 |
| Primary Part Number | 123CSM10048-517 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Flange Outside Diameter | 0.7500 INCHES NOMINAL IN |
| Body Outside Diameter | 0.5007 INCHES MINIMUM AND 0.5012 INCHES MAXIMUM IN |
| Hardness Rating | 33.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | BLANK, EXTERNAL FLANGE ONE END |
| Material Document and Classification | 6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.3680 INCHES MINIMUM AND 0.3700 INCHES MAXIMUM IN |
| Flange Width | 0.0480 INCHES MINIMUM AND 0.0500 INCHES MAXIMUM 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 |
|---|---|
| 123CSM10048-517 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 123CSM10048-517 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| 123CSM10048-517 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 123CSM10048 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
NSN 3120-01-528-9591 is a Bushing,sleeve, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-528-9591 has 1 manufacturer part number on file: 123CSM10048-517 (Northrop Grumman Systems Corporation).
Key specifications for 123CSM10048-517: Flange Outside Diameter: 0.7500 INCHES NOMINAL IN; Body Outside Diameter: 0.5007 INCHES MINIMUM AND 0.5012 INCHES MAXIMUM IN; Hardness Rating: 33.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL; Style Designator: BLANK, EXTERNAL FLANGE ONE END. 8 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.