The Connecting Rod,piston, cataloged under National Stock Number 4130-00-876-7256, is classified within Federal Supply Class 4130 (Refrigeration and Air Conditioning Components) of the Refrigeration, AC, and Air Circulating Equipment group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4130-00-876-7256 |
| Item Name | Connecting Rod,piston |
| FSC / FSG | 4130 / 41 — Refrigeration and Air Conditioning Components |
| Status | ACTIVE |
| End Thickness | 1.375 INCHES NOMINAL IN |
| Body Width at Shaft Connecting End | 1.750 INCHES NOMINAL IN |
| Shaft Connecting End Lubrication Drill Feature | NOT INCLUDED |
| Shaft Connecting End Bearing | NOT INCLUDED |
| Piston Connecting End Bearing | NOT INCLUDED |
| Body Thickness at Piston Connecting End | 0.688 INCHES NOMINAL IN |
| End Hole Inside Diameter | 0.500 INCHES NOMINAL IN |
| Body Thickness at Shaft Connecting End | 0.688 INCHES NOMINAL IN |
| Shaft Connecting End Style | AUTOMOTIVE STANDARD SPLIT BEARING 2 BOLT |
| Material | ALUMINUM |
| Fabrication Method | CAST |
| Piston End Connection Style | SMALL ENGINE AND AUTOMOTIVE STANDARD |
| Edge Radius | 1.562 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 |
| Reference | Meaning |
|---|---|
| 550999 | 5/9 Secondary reference Lodestone Corp Div of Fedders Corp |
| 20263R | 3/9 Design control — primary reference Lodestone Corp Div of Fedders Corp |
| 523487 | 7/9 Vendor item drawing reference Lodestone Corp Div of Fedders Corp |
| 522821 | 5/9 Secondary reference Lodestone Corp Div of Fedders Corp |
NSN 4130-00-876-7256 is a Connecting Rod,piston, classified under FSC 4130, Refrigeration and Air Conditioning Components. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 1660-00-970-3764, 5998-01-142-2869, 6750-01-427-4986. Verify interchangeability with system specifications before substitution.
Key specifications for 4130-00-876-7256: End Thickness: 1.375 INCHES NOMINAL IN; Body Width at Shaft Connecting End: 1.750 INCHES NOMINAL IN; Shaft Connecting End Lubrication Drill Feature: NOT INCLUDED; Shaft Connecting End Bearing: NOT INCLUDED. 13 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.