The Bushing,sleeve, cataloged under National Stock Number 3120-00-140-4635, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Honeywell International Inc Div Aerospace-South Bend (bendix Dr). Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3120-00-140-4635 |
| Primary Part Number | 2578760-001A |
| Item Name | Bushing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES INTERMEDIATE LAYER |
| Corner Shape | CHAMFERED INSIDE LEFT CORNER |
| Corner Shape | SQUARE INSIDE RIGHT CORNER |
| Corner Shape | SQUARE LEFT FLANGE BODY CORNER |
| Corner Shape | SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER |
| Corner Shape | CHAMFERED OUTSIDE LEFT CORNER |
| Corner Shape | CHAMFERED OUTSIDE RIGHT CORNER |
| Surface Treatment Document and Classification | CP-0520,06848 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Flange Outside Diameter | 2.1200 INCHES NOMINAL IN |
| Body Outside Diameter | 1.8700 INCHES NOMINAL IN |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 1.6180 INCHES MINIMUM AND 1.6230 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Flange Width | 0.1560 INCHES NOMINAL IN |
| Test Data Document | 81349-MIL-I-6870 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| 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 |
|---|---|
| 2578760-001A PRIMARY | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA) |
| Reference | Meaning |
|---|---|
| 2578760-001A | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) |
| 2578760-001A | 5/9 Secondary reference Goodrich Corp Dba Goodrich Corp |
NSN 3120-00-140-4635 is a Bushing,sleeve, manufactured by Honeywell International Inc Div Aerospace-South Bend (bendix Dr), classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-00-140-4635 has 1 manufacturer part number on file: 2578760-001A (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)).
Key specifications for 2578760-001A: Surface Finish: 125.0 MICROINCHES INTERMEDIATE LAYER; Corner Shape: CHAMFERED INSIDE LEFT CORNER; Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE LEFT FLANGE BODY CORNER. 18 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.