The Bearing,sleeve, cataloged under National Stock Number 3120-01-149-3003, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 9 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through both NSN and commercial part number lookups. 14 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-149-3003 |
| Primary Part Number | M81934/1-07C018 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Corner Shape | SQUARE ALL CORNERS |
| Surface Treatment Document and Classification | MIL-H-6875,17-4PH COND H-1150 MIL STD ALL TREATMENT RESPONSES EXTERNAL OUTER MEMBER |
| Body Outside Diameter | 0.5638 INCHES NOMINAL IN |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Material Document and Classification | AMS5643 NATIONAL SPEC ALL MATERIAL RESPONSES EXTERNAL OUTER MEMBER |
| Body Inside Diameter | 0.4380 INCHES MINIMUM AND 0.4390 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE EXTERNAL OUTER MEMBER |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE INTERNAL SURFACES |
| Material | STEEL CORROSION RESISTING EXTERNAL OUTER MEMBER |
| 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 |
|---|---|
| M81934/1-07C018 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| BJ14TH-018 | 5/9 Secondary reference Timken Co Div the Timken Company |
| KDJ07C018-240 | 5/9 Secondary reference U.S. Government activity |
| BJ14TH-018 | 5/1 Secondary reference Rbc Aircraft Products, Inc. |
| SAE-AS81934/1 | 3/1 Design control — primary reference Sae International Dba Sae International |
| ATT07SS018 | 5/1 Secondary reference New Hampshire Ball Bearings Inc Div Astro Division |
| AS81934 | 5/9 Secondary reference U.S. Government activity |
| 117-21-07-018 | 5/9 Secondary reference Rexnord Industries, Llc Div Aerosspace Bearing Operation |
| KDJ07C018-341 | 5/1 Secondary reference U.S. Government activity |
| AS81934 | 5/1 Secondary reference Sae International Dba Sae International |
| M81934/1-07C-018 | 5/9 Secondary reference U.S. Government activity |
| BJ14TH18M | 5/9 Secondary reference Timken Co Div the Timken Company |
| 91086-07C018 | 5/1 Secondary reference Rbc Transport Dynamics Corp Div Rbc Transport Dynamics |
| BJ14TH18M | 5/1 Secondary reference Rbc Aircraft Products, Inc. |
| M81934/1-07C018 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3120-01-149-3003 is a Bearing,sleeve, manufactured by Sae International Dba Sae International, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-149-3003 has 1 manufacturer part number on file: M81934/1-07C018 (Sae International Dba Sae International).
Key specifications for M81934/1-07C018: Corner Shape: SQUARE ALL CORNERS; Surface Treatment Document and Classification: MIL-H-6875,17-4PH COND H-1150 MIL STD ALL TREATMENT RESPONSES EXTERNAL OUTER MEMBER; Body Outside Diameter: 0.5638 INCHES NOMINAL IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES. 9 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.