The Connecting Rod,piston, cataloged under National Stock Number 4130-01-173-7954, is classified within Federal Supply Class 4130 (Refrigeration and Air Conditioning Components) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Hartford Compressors Inc. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4130-01-173-7954 |
| Primary Part Number | ROD79 |
| Item Name | Connecting Rod,piston |
| FSC / FSG | 4130 / 41 — Refrigeration and Air Conditioning Components |
| Manufacturer | Hartford Compressors Inc |
| Status | ACTIVE |
| Shaft Connecting End Hole Inside Diameter | 2.000 INCHES NOMINAL IN |
| End Thickness | 0.750 INCHES NOMINAL IN |
| Body Width at Piston Connecting End | 0.750 INCHES NOMINAL IN |
| Body Width at Shaft Connecting End | 1.000 INCHES NOMINAL IN |
| Shaft Connecting End Lubrication Drill Feature | NOT INCLUDED |
| Shaft Connecting End Bearing | NOT INCLUDED |
| Shaft Connecting End Thickness | 0.812 INCHES NOMINAL IN |
| Center to Center Effective Length | 4.500 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | FLAT TYPE |
| Piston Connecting End Bearing | NOT INCLUDED |
| Piston Connecting End Lubrication Method | FULL FORCED-FEED |
| Shaft Connecting End Width | 3.000 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 | 0.625 INCHES NOMINAL IN |
| Shaft Connecting End Style | 2 BOLT 45 DEGREES |
| Material | ALUMINUM |
| Fabrication Method | CAST AND MACHINED |
| Piston End Connection Style | SMALL ENGINE AND AUTOMOTIVE STANDARD |
| Edge Radius | 0.688 INCHES NOMINAL IN |
| Piston Connecting End Lubrication Drill Feature | INCLUDED |
| Shaft Connecting End Lubrication Method | SPLASH |
| 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 |
|---|---|
| ROD79 PRIMARY | Hartford Compressors Inc (USA) |
| Reference | Meaning |
|---|---|
| R0D79 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 4130-01-173-7954 is a Connecting Rod,piston, manufactured by Hartford Compressors Inc, classified under FSC 4130, Refrigeration and Air Conditioning Components. Status: active.
NSN 4130-01-173-7954 has 1 manufacturer part number on file: ROD79 (Hartford Compressors Inc).
Key specifications for ROD79: Shaft Connecting End Hole Inside Diameter: 2.000 INCHES NOMINAL IN; End Thickness: 0.750 INCHES NOMINAL IN; Body Width at Piston Connecting End: 0.750 INCHES NOMINAL IN; Body Width at Shaft Connecting End: 1.000 INCHES NOMINAL IN. 22 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.