The Ring,piston, cataloged under National Stock Number 2810-00-628-3556, 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 Curtiss-Wright Controls, Inc. Div Actuation Division. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2810-00-628-3556 |
| Primary Part Number | 5015R3 |
| Item Name | Ring,piston |
| FSC / FSG | 2810 / 28 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components |
| Manufacturer | Curtiss-Wright Controls, Inc. Div Actuation Division |
| Status | ACTIVE |
| FSC Application Data | GASOLINE RECIPROCATING ENGINE,AIRCRAFT |
| Material Document and Classification | AMS 7320 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | DOUBLE INSIDE BEVEL, STRAIGHT FACE |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.1550 INCHES MINIMUM AND 0.1650 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 4.996 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 |
|---|---|
| 5015R3 PRIMARY | Curtiss-Wright Controls, Inc. Div Actuation Division (USA) |
NSN 2810-00-628-3556 is a Ring,piston, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 2810, Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components. Status: active.
NSN 2810-00-628-3556 has 1 manufacturer part number on file: 5015R3 (Curtiss-Wright Controls, Inc. Div Actuation Division).
Key specifications for 5015R3: FSC Application Data: GASOLINE RECIPROCATING ENGINE,AIRCRAFT; Overall Width: 0.0990 INCHES MINIMUM AND 0.1000 INCHES MAXIMUM IN; Material Document and Classification: AMS 7320 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: DOUBLE INSIDE BEVEL, 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.