The Bushing,sleeve, cataloged under National Stock Number 3120-01-017-0743, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-017-0743 |
| Primary Part Number | 4-1265-53 |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES INTERMEDIATE LAYER |
| Corner Shape | SQUARE INSIDE RIGHT CORNER |
| Corner Shape | SQUARE 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 | 0.5620 INCHES NOMINAL IN |
| Body Outside Diameter | 0.4997 INCHES MINIMUM AND 0.5003 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.4410 INCHES MINIMUM AND 0.4420 INCHES MAXIMUM IN |
| Flange Width | 0.0470 INCHES MINIMUM AND 0.0530 INCHES MAXIMUM IN |
| Material | STEEL COMP 630 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 |
|---|---|
| 4-1265-53 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics (USA) |
| Reference | Meaning |
|---|---|
| 4-1265-53 | 5/9 Secondary reference U.S. Government activity |
| 4-1265-53 | 5/1 Secondary reference Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations |
NSN 3120-01-017-0743 is a Bushing,sleeve, manufactured by Parker-Hannifin Corporation Dba Pneutronics, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-017-0743 has 1 manufacturer part number on file: 4-1265-53 (Parker-Hannifin Corporation Dba Pneutronics).
1 possible match (shared part number, not a government interchangeability claim): 5915-01-090-6419. Verify interchangeability with system specifications before substitution.
Key specifications for 4-1265-53: Surface Finish: 125.0 MICROINCHES INTERMEDIATE LAYER; Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE LEFT FLANGE BODY CORNER; Corner Shape: SQUARE OUTSIDE RIGHT CORNER. 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.