The Ring,piston, cataloged under National Stock Number 2810-01-248-5167, is classified within Federal Supply Class 2810 (Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2810-01-248-5167 |
| Primary Part Number | 68A412708-2001 |
| Item Name | Ring,piston |
| FSC / FSG | 2810 / 28 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Cross-Sectional Shape Style | DOUBLE INSIDE COUNTERBORE, STRAIGHT FACE |
| Joint Style | DIAGONAL JOINT |
| Radial Wall Thickness | 0.1730 INCHES NOMINAL IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 4.938 INCHES IN |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 68A412708-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| 68A412708-2001 | Machine Specialties, Llc (USA) |
| 68A412708-2001 | J Smith Machine Shop Inc Dba Island Engineering (USA) |
| 68A412708-2001 | Goodrich Corporation (USA) |
| 68A412708-2001 | Hdi Landing Gear Usa Inc (USA) |
| 68A412708-2001 | A.g.h. Industries, Llc (USA) |
| 68A412708-2001 | Cummins Aerospace, Llc Dba Cummins Aerospace Llc (USA) |
| 68A412708-2001 | Heroux-Devtek Inc (CAN) |
| Reference | Meaning |
|---|---|
| 68A412708 | D/9 Drawing number reference only The Boeing Company Div Defense |
| 68A412708-2001 | 5/9 Secondary reference Goodrich Corporation Div Advanced Structures Landing Systems |
| 68A412708-2001 | 5/2 Secondary reference U.S. Government activity |
| 68A412708-2001 | 5/9 Secondary reference All Tools, Inc. Dba E2 Precision Products |
NSN 2810-01-248-5167 is a Ring,piston, manufactured by The Boeing Company Div Defense, classified under FSC 2810, Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components. Status: active.
NSN 2810-01-248-5167 has 8 manufacturer part numbers on file: 68A412708-2001 (The Boeing Company Div Defense), 68A412708-2001 (Machine Specialties, Llc), 68A412708-2001 (J Smith Machine Shop Inc Dba Island Engineering), 68A412708-2001 (Goodrich Corporation), 68A412708-2001 (Hdi Landing Gear Usa Inc) and 3 more.
Key specifications for 68A412708-2001: Criticality Code Justification: FEAT; Overall Width: 0.2800 INCHES NOMINAL IN; Cross-Sectional Shape Style: DOUBLE INSIDE COUNTERBORE, STRAIGHT FACE; Joint Style: DIAGONAL JOINT. 7 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.