The Connecting Rod,piston, cataloged under National Stock Number 4310-00-374-9521, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Parker Hannifin Corporation Div Hydraulic Systems Division. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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 | 4310-00-374-9521 |
| Primary Part Number | 31769 |
| Item Name | Connecting Rod,piston |
| FSC / FSG | 4310 / 43 — No Item Name Available |
| Manufacturer | Parker Hannifin Corporation Div Hydraulic Systems Division |
| Status | ACTIVE |
| Shaft Connecting End Lubrication Method | SPLASH |
| Body Width at Piston Connecting End | 0.625 INCHES NOMINAL IN |
| Shaft Connecting End Thickness | 1.500 INCHES NOMINAL IN |
| Piston Connecting End Lubrication Drill Feature | INCLUDED |
| Shaft Connecting End Bearing | INCLUDED |
| Shaft Connecting End Hole Inside Diameter | 0.875 INCHES NOMINAL IN |
| Piston End Connection Style | SMALL ENGINE AND AUTOMOTIVE STANDARD |
| Shaft Connecting End Bearing Replaceability | NONREPLACEABLE |
| Edge Radius | 0.266 INCHES NOMINAL IN |
| Piston Connecting End Bearing | INCLUDED |
| Body Thickness at Shaft Connecting End | 0.562 INCHES NOMINAL IN |
| Piston Connecting End Lubrication Method | SPLASH |
| End Hole Inside Diameter | 0.500 INCHES NOMINAL IN |
| Shaft Connecting End Style | AUTOMOTIVE STANDARD SPLIT BEARING 2 BOLT |
| Shaft Connecting End Width | 2.000 INCHES NOMINAL IN |
| Body Width at Shaft Connecting End | 0.875 INCHES NOMINAL IN |
| Shaft Connecting End Edge Radius | 0.387 INCHES NOMINAL IN |
| Bearing Replaceability | REPLACEABLE |
| Center to Center Effective Length | 3.875 INCHES NOMINAL IN |
| End Thickness | 1.000 INCHES NOMINAL IN |
| Shaft Connecting End Lubrication Drill Feature | INCLUDED |
| Body Thickness at Piston Connecting End | 0.500 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Cross-Sectional Shape Style | I-SECTION TYPE |
| Fabrication Method | CAST |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4310-00-374-9521 is a Connecting Rod,piston, manufactured by Parker Hannifin Corporation Div Hydraulic Systems Division, classified under FSC 4310 (No Item Name Available). Status: active.
NSN 4310-00-374-9521 has 3 cross-referenced part numbers: 31769 (Parker Hannifin Corporation Div Hydraulic Systems Division), 31769 (Compair Kellogg Div of Robertshaw Controls Co), 31769 (Leroi International Inc Dba Compair Leroi).
There are 4 known substitutes for 4310-00-374-9521: 5133-00-839-5505, 2590-01-219-2035, 6105-01-641-7351 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 31769: Shaft Connecting End Lubrication Method: SPLASH; Body Width at Piston Connecting End: 0.625 INCHES NOMINAL IN; Shaft Connecting End Thickness: 1.500 INCHES NOMINAL IN; Piston Connecting End Lubrication Drill Feature: INCLUDED. 25 total characteristics are documented in the Federal Logistics Information System.