The Ring,piston, cataloged under National Stock Number 2810-00-302-8671, 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 Moog Military Aircraft Llc. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2810-00-302-8671 |
| Primary Part Number | 231826-501 |
| Item Name | Ring,piston |
| FSC / FSG | 2810 / 28 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components |
| Manufacturer | Moog Military Aircraft Llc |
| Status | ACTIVE |
| FSC Application Data | SERVOCYLINDER,HYDRAULIC,ACFT |
| Material Document and Classification | AMS4640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.0630 INCHES MINIMUM AND 0.0640 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 3.428 INCHES IN |
| Material | COPPER ALLOY OVERALL |
| 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 |
|---|---|
| 231826-501 PRIMARY | Moog Military Aircraft Llc (USA) |
| Reference | Meaning |
|---|---|
| 231826-501 | 5/9 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
NSN 2810-00-302-8671 is a Ring,piston, manufactured by Moog Military Aircraft Llc, classified under FSC 2810, Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components. Status: active.
NSN 2810-00-302-8671 has 1 manufacturer part number on file: 231826-501 (Moog Military Aircraft Llc).
Key specifications for 231826-501: FSC Application Data: SERVOCYLINDER,HYDRAULIC,ACFT; Overall Width: 0.3730 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN; Material Document and Classification: AMS4640 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE. 8 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.