The Bearing,roller,tapered, cataloged under National Stock Number 3110-01-339-1297, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3110-01-339-1297 |
| Primary Part Number | MA991 |
| Item Name | Bearing,roller,tapered |
| FSC / FSG | 3110 / 31 — No Item Name Available |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| Status | CANCELLED |
| Cone Width | 1.718 INCHES NOMINAL IN |
| Cup Width | 1.437 INCHES NOMINAL IN |
| Largest Bore Diameter | 2.375 INCHES NOMINAL IN |
| Overall Outside Diameter | 4.812 INCHES NOMINAL IN |
| Functional Description | DYNAMIC LOAD RATING: 37,700LBS; EFFECTIVE LOAD CENTER: -0.48 LBS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MA991 | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
| A-A-59649-440 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| A-A-59649C | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| MA991 XA7533 | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
| 5583-5535 | The Timken Corporation (USA) |
| A-A-59649 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| MA541 | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
NSN 3110-01-339-1297 is a Bearing,roller,tapered, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 3110 (No Item Name Available). Status: cancelled.
NSN 3110-01-339-1297 has 7 cross-referenced part numbers: MA991 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), A-A-59649-440 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A-A-59649C (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), MA991 XA7533 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), 5583-5535 (The Timken Corporation) and 2 more.
There are 7 known substitutes for 3110-01-339-1297: 3110-00-100-0207, 3110-00-100-0544, 3110-00-100-3149 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for MA991: Part Name Assigned by Controlling Agency: BEARING; Cone Width: 1.718 INCHES NOMINAL IN; Cup Width: 1.437 INCHES NOMINAL IN; Special Features: SHAFT SHOULDER DIAMTER: 2.83-3.07"; HOUSING DIAMTER: 4.17-4.57; K FACTOR: 1.63. 7 total characteristics are documented in the Federal Logistics Information System.
NSN 3110-01-339-1297 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.