The Connecting Rod,piston, cataloged under National Stock Number 4310-00-412-0388, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 25 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-00-412-0388 |
| Primary Part Number | 1AH7-115 |
| Item Name | Connecting Rod,piston |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Dresser Industries Inc Leroi Div |
| Status | ACTIVE |
| Shaft Connecting End Hole Inside Diameter | 1.500 INCHES NOMINAL IN |
| End Thickness | 0.625 INCHES NOMINAL IN |
| Body Width at Piston Connecting End | 0.760 INCHES NOMINAL IN |
| Body Width at Shaft Connecting End | 1.000 INCHES NOMINAL IN |
| Shaft Connecting End Lubrication Drill Feature | INCLUDED |
| End Width | 1.330 INCHES NOMINAL IN |
| Shaft Connecting End Bearing | INCLUDED |
| Shaft Connecting End Thickness | 1.375 INCHES NOMINAL IN |
| Center to Center Effective Length | 8.750 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | I-SECTION TYPE |
| Piston Connecting End Bearing | NOT INCLUDED |
| Piston Connecting End Lubrication Method | SPLASH |
| Shaft Connecting End Width | 2.813 INCHES NOMINAL IN |
| Body Thickness at Piston Connecting End | 0.625 INCHES NOMINAL IN |
| End Hole Inside Diameter | 0.750 INCHES NOMINAL IN |
| Body Thickness at Shaft Connecting End | 0.750 INCHES NOMINAL IN |
| Shaft Connecting End Style | AUTOMOTIVE STANDARD SPLIT BEARING 2 BOLT |
| Material | STEEL |
| Fabrication Method | CAST |
| Piston End Connection Style | CLAMP |
| Shaft Connecting End Bearing Replaceability | REPLACEABLE |
| Edge Radius | 0.500 INCHES NOMINAL IN |
| Piston Connecting End Lubrication Drill Feature | NOT INCLUDED |
| Shaft Connecting End Lubrication Method | SPLASH |
| Shaft Connecting End Edge Radius | 0.746 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 |
NSN 4310-00-412-0388 is a Connecting Rod,piston, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-00-412-0388 has 2 manufacturer part numbers on file: 1AH7-115 (Dresser Industries Inc Leroi Div), AC2621-1 (Dresser Industries Inc Leroi Div).
Key specifications for 1AH7-115: Shaft Connecting End Hole Inside Diameter: 1.500 INCHES NOMINAL IN; End Thickness: 0.625 INCHES NOMINAL IN; Body Width at Piston Connecting End: 0.760 INCHES NOMINAL IN; Body Width at Shaft Connecting End: 1.000 INCHES NOMINAL IN. 25 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.