The Bearing,sleeve, cataloged under National Stock Number 3120-00-752-1020, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-00-752-1020 |
| Primary Part Number | 7521020 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — No Item Name Available |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Surface Finish | 16.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY |
| Antirotation/lubrication Type and Quantity | 1 HOLE |
| Surface Finish | 50.0 MICROINCHES RIGHT END SURFACE OF BODY |
| Surface Treatment | PHOSPHATE MANGANESE OVERALL |
| Corner Shape | SQUARE ALL CORNERS |
| Flange Outside Diameter | 2.5625 INCHES NOMINAL IN |
| Material | LUBRICANT LUBRICATION |
| Hole Diameter | 0.1860 INCHES MINIMUM AND 0.1870 INCHES MAXIMUM FIRST IN |
| Features Provided | CASEHARDENED |
| Body Outside Diameter | 2.1205 INCHES MINIMUM AND 2.1210 INCHES MAXIMUM IN |
| Body Inside Diameter | 1.7495 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN |
| Flange Width | 0.1610 INCHES MINIMUM AND 0.1630 INCHES MAXIMUM IN |
| Hardness Rating | 59.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL |
| Surface Finish | 32.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE |
| Material | STEEL COMP 8620 OVERALL |
| Surface Finish | 50.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Surface Finish | 32.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2344T2 | Spalla Inc (USA) |
| 30-37-11 | Dana Corp Spicer Transmission Div (USA) |
| 7521020 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 914100 | Sasco Inc Canadian Div |
| 3120007521020 | E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 2344T2 | Diamond Reo Truck Co (USA) |
NSN 3120-00-752-1020 is a Bearing,sleeve, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3120 (No Item Name Available). Status: active.
NSN 3120-00-752-1020 has 6 cross-referenced part numbers: 2344T2 (Spalla Inc), 30-37-11 (Dana Corp Spicer Transmission Div), 7521020 (U S Army Tank Automotive Command Amsta-Im-Mm), 914100 (Sasco Inc Canadian Div), 3120007521020 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee) and 1 more.
There are 4 known substitutes for 3120-00-752-1020: 3110-00-227-3241, 4320-00-480-7872, 5945-00-841-9010 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 7521020: Surface Finish: 16.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY; Antirotation/lubrication Type and Quantity: 1 HOLE; Surface Finish: 50.0 MICROINCHES RIGHT END SURFACE OF BODY; Surface Treatment: PHOSPHATE MANGANESE OVERALL. 19 total characteristics are documented in the Federal Logistics Information System.