The Bearing,ball,annular, cataloged under National Stock Number 3110-00-345-6121, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 3110-00-345-6121 |
| Primary Part Number | 4037050 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — No Item Name Available |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | CANCELLED |
| Internal Clearance | 0.0101 INCHES MINIMUM RADIAL AND 0.0115 INCHES MAXIMUM RADIAL IN |
| Bore Shape | STRAIGHT |
| Bore Diameter | 110.00 MILLIMETERS NOMINAL MM |
| Material | STEEL INNER RING |
| Material Document and Classification | PWA 725,97497 MFR REF 2ND MATERIAL RESPONSE INNER RING |
| Material Document and Classification | PWA 725,97497 MFR REF 3RD MATERIAL RESPONSE OUTER RING |
| Material | STEEL OUTER RING |
| Material Document and Classification | PWA 725,97497 MFR REF 1ST MATERIAL RESPONSE BALL |
| Material | STEEL COMP 4340 RETAINER |
| Material | STEEL BALL |
| Precious Material | SILVER |
| Flange Width | 0.2210 INCHES NOMINAL IN |
| Outer Ring Width | 29.00 MILLIMETERS NOMINAL MM |
| Load Direction | ANGULAR |
| Outer Ring Outside Diameter | 170.0 MILLIMETERS NOMINAL MM |
| Inner Ring Width | 1.4080 INCHES NOMINAL IN |
| Standard Tolerance Designation | ABEC NO.7 |
| Contact Angle | 33.0 DEGREES NOMINAL |
| Surface Finish | GROUND |
| Retainer Fabrication Method | MACHINED |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4000352 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4037050 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4000425 | Timken Co Div the Timken Company (USA) |
| 4000425 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 3110-00-345-6121 is a Bearing,ball,annular, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 3110 (No Item Name Available). Status: cancelled.
NSN 3110-00-345-6121 has 4 cross-referenced part numbers: 4000352 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4037050 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4000425 (Timken Co Div the Timken Company), 4000425 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
There are 2 known substitutes for 3110-00-345-6121: 5310-01-653-2634, 5340-01-734-1541. Verify interchangeability with system specifications before substitution.
Key specifications for 4037050: Internal Clearance: 0.0101 INCHES MINIMUM RADIAL AND 0.0115 INCHES MAXIMUM RADIAL IN; Bore Shape: STRAIGHT; Bore Diameter: 110.00 MILLIMETERS NOMINAL MM; Special Features: EACH ASSEMBLY CONTAINS 2 INNER RACES,AN OUTER RACE,A ROLLER CAGE,AND A SET OF ROLLERS. 21 total characteristics are documented in the Federal Logistics Information System.
NSN 3110-00-345-6121 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.