The Connecting Rod,piston, cataloged under National Stock Number 2805-00-356-1338, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Briggs and Stratton Corp. Government technical data includes 25 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2805-00-356-1338 |
| Primary Part Number | 99640 |
| Item Name | Connecting Rod,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Briggs and Stratton Corp |
| Status | ACTIVE |
| Shaft Connecting End Hole Inside Diameter | 0.751 INCHES NOMINAL IN |
| End Thickness | 0.800 INCHES NOMINAL IN |
| Body Width at Piston Connecting End | 0.430 INCHES NOMINAL IN |
| Body Width at Shaft Connecting End | 0.625 INCHES NOMINAL IN |
| Shaft Connecting End Lubrication Drill Feature | NOT INCLUDED |
| Shaft Connecting End Bearing | INCLUDED |
| Bearing Replaceability | NONREPLACEABLE |
| Shaft Connecting End Thickness | 0.988 INCHES NOMINAL IN |
| Center to Center Effective Length | 3.250 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | I-SECTION TYPE |
| Piston Connecting End Bearing | INCLUDED |
| Piston Connecting End Lubrication Method | SPLASH |
| Shaft Connecting End Width | 1.595 INCHES NOMINAL IN |
| Body Thickness at Piston Connecting End | 0.425 INCHES NOMINAL IN |
| End Hole Inside Diameter | 0.490 INCHES NOMINAL IN |
| Body Thickness at Shaft Connecting End | 0.425 INCHES NOMINAL IN |
| Shaft Connecting End Style | AUTOMOTIVE STANDARD SPLIT BEARING 2 BOLT |
| Material | ALUMINUM ALLOY |
| Fabrication Method | CAST AND MACHINED |
| Piston End Connection Style | SMALL ENGINE AND AUTOMOTIVE STANDARD |
| Shaft Connecting End Bearing Replaceability | NONREPLACEABLE |
| Edge Radius | 0.380 INCHES NOMINAL IN |
| Piston Connecting End Lubrication Drill Feature | NOT INCLUDED |
| Shaft Connecting End Lubrication Method | SPLASH |
| Shaft Connecting End Edge Radius | 0.634 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 |
|---|---|
| 99640 PRIMARY | Briggs and Stratton Corp (USA) |
NSN 2805-00-356-1338 is a Connecting Rod,piston, manufactured by Briggs and Stratton Corp, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-356-1338 has 1 manufacturer part number on file: 99640 (Briggs and Stratton Corp).
1 possible match (shared part number, not a government interchangeability claim): 6150-01-371-3021. Verify interchangeability with system specifications before substitution.
Key specifications for 99640: Shaft Connecting End Hole Inside Diameter: 0.751 INCHES NOMINAL IN; End Thickness: 0.800 INCHES NOMINAL IN; Body Width at Piston Connecting End: 0.430 INCHES NOMINAL IN; Body Width at Shaft Connecting End: 0.625 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.