The Bearing,sleeve, cataloged under National Stock Number 3120-01-121-2807, 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 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-121-2807 |
| Primary Part Number | M81934/2-20C032 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Corner Shape | SQUARE INSIDE RIGHT 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 |
| Corner Shape | UNDERCUT LEFT FLANGE BODY CORNER |
| Flange Outside Diameter | 1.9800 INCHES MINIMUM AND 2.0000 INCHES MAXIMUM IN |
| Body Outside Diameter | 1.4393 INCHES MINIMUM AND 1.4398 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OUTER LAYER |
| Body Inside Diameter | 1.2505 INCHES MINIMUM AND 1.2515 INCHES MAXIMUM IN |
| Flange Width | 0.0887 INCHES MINIMUM AND 0.0937 INCHES MAXIMUM IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE INNER LAYER |
| Material | STEEL COMP 630 OUTER LAYER |
| 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 |
|---|---|
| KRJ20-UDSB-032 | Kamatics Corporation (USA) |
| 8001-018-3 | Indal Technologies Inc (CAN) |
| M81934/2-20C032 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AS81934/2 | 5/9 Secondary reference U.S. Government activity |
| AS81934/2 | 3/1 Design control — primary reference Sae International Dba Sae International |
| M81934/2-20C032 | 5/9 Secondary reference U.S. Government activity |
| M81934/2-20C032 | 5/9 Secondary reference U.S. Government activity |
| MIL-B-81934/2-20C32 | 5/9 Secondary reference U.S. Government activity |
| MS21241-20C32 | 5/9 Secondary reference U.S. Government activity |
NSN 3120-01-121-2807 is a Bearing,sleeve, manufactured by Sae International Dba Sae International, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-121-2807 has 3 manufacturer part numbers on file: KRJ20-UDSB-032 (Kamatics Corporation), 8001-018-3 (Indal Technologies Inc), M81934/2-20C032 (Sae International Dba Sae International).
Key specifications for M81934/2-20C032: Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE OUTSIDE RIGHT CORNER; Corner Shape: SQUARE OUTSIDE LEFT CORNER; Corner Shape: SQUARE LEFT FLANGE 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.