The Connecting Rod,piston, cataloged under National Stock Number 4320-00-258-7797, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Idsc Holdings Dba Equiserv Dba Equiserv. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-258-7797 |
| Primary Part Number | 1263906 |
| Item Name | Connecting Rod,piston |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Idsc Holdings Dba Equiserv Dba Equiserv |
| Status | ACTIVE |
| Shaft Connecting End Hole Inside Diameter | 0.481 INCHES NOMINAL IN |
| End Thickness | 0.656 INCHES NOMINAL IN |
| Body Width at Piston Connecting End | 0.688 INCHES NOMINAL IN |
| Body Width at Shaft Connecting End | 0.750 INCHES NOMINAL IN |
| Shaft Connecting End Lubrication Drill Feature | NOT INCLUDED |
| Shaft Connecting End Bearing | NOT INCLUDED |
| Bearing Replaceability | REPLACEABLE |
| Center to Center Effective Length | 4.917 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | CROSS TYPE |
| Piston Connecting End Bearing | INCLUDED |
| Piston Connecting End Lubrication Method | SPLASH |
| Shaft Connecting End Width | 1.937 INCHES NOMINAL IN |
| Body Thickness at Piston Connecting End | 0.625 INCHES NOMINAL IN |
| End Hole Inside Diameter | 0.312 INCHES NOMINAL IN |
| Body Thickness at Shaft Connecting End | 0.625 INCHES NOMINAL IN |
| Shaft Connecting End Style | AUTOMOTIVE STANDARD SPLIT BEARING 2 BOLT |
| Material | ALUMINUM ALLOY |
| Fabrication Method | CAST |
| Piston End Connection Style | SMALL ENGINE AND AUTOMOTIVE STANDARD |
| Edge Radius | 0.438 INCHES NOMINAL IN |
| Piston Connecting End Lubrication Drill Feature | NOT INCLUDED |
| Shaft Connecting End Lubrication Method | SPLASH |
| Shaft Connecting End Edge Radius | 0.656 INCHES NOMINAL IN |
| 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 |
|---|---|
| 1263906 PRIMARY | Idsc Holdings Dba Equiserv Dba Equiserv (USA) |
| Reference | Meaning |
|---|---|
| 1263906 | 5/9 Secondary reference Asset Systems, Inc. Dba Asset Systems Inc |
NSN 4320-00-258-7797 is a Connecting Rod,piston, manufactured by Idsc Holdings Dba Equiserv Dba Equiserv, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-258-7797 has 1 manufacturer part number on file: 1263906 (Idsc Holdings Dba Equiserv Dba Equiserv).
Key specifications for 1263906: Shaft Connecting End Hole Inside Diameter: 0.481 INCHES NOMINAL IN; End Thickness: 0.656 INCHES NOMINAL IN; Body Width at Piston Connecting End: 0.688 INCHES NOMINAL IN; Body Width at Shaft Connecting End: 0.750 INCHES NOMINAL IN. 23 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.