The Pin,piston, cataloged under National Stock Number 2805-00-176-4931, 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 General Motors Corp. Government technical data includes 12 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. 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 | 2805-00-176-4931 |
| Primary Part Number | 602320 |
| Item Name | Pin,piston |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| FSC Application Data | ENGINE,GASOLINE,NONAIRCRAFT |
| Body Style | RADII ENDS |
| Radius | 0.035 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN |
| Bore Style | COUNTERBORED |
| Outside Diameter | 0.86950 INCHES MINIMUM AND 0.87000 INCHES MAXIMUM IN |
| Counterbore Depth | 0.968 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN |
| Counterbore Diameter | 0.592 INCHES MINIMUM AND 0.598 INCHES MAXIMUM IN |
| Body Length | 3.1050 INCHES MINIMUM AND 3.1350 INCHES MAXIMUM IN |
| Casehardening Indicator | CASEHARDENED |
| Bore Diameter | 0.4375 INCHES NOMINAL IN |
| Material | STEEL |
| Metallic Hardness Rating | 91.5 NOMINAL ROCKWELL SUPERFICIAL 15-N |
| 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 |
|---|---|
| 602320 PRIMARY | General Motors Corp (USA) |
NSN 2805-00-176-4931 is a Pin,piston, manufactured by General Motors Corp, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-00-176-4931 has 1 manufacturer part number on file: 602320 (General Motors Corp).
3 possible matches (shared part number, not a government interchangeability claim): 5330-01-253-3911, 5330-01-463-4529, 6525-01-699-1512. Verify interchangeability with system specifications before substitution.
Key specifications for 602320: FSC Application Data: ENGINE,GASOLINE,NONAIRCRAFT; Body Style: RADII ENDS; Radius: 0.035 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN; Bore Style: COUNTERBORED. 12 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.