The Ring Set,piston, cataloged under National Stock Number 2520-01-017-1647, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.. Government technical data includes 3 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 | 2520-01-017-1647 |
| Primary Part Number | A-24559-1 |
| Item Name | Ring Set,piston |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. |
| Status | ACTIVE |
| Ring Set Component Parts | UPPER RING 1; LOWER RING 1 |
| Piston Accommodation Quantity | 1 |
| Standard Bore Diameter | 8.000 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A-24559-1 PRIMARY | Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA) |
NSN 2520-01-017-1647 is a Ring Set,piston, manufactured by Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp., classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-017-1647 has 1 manufacturer part number on file: A-24559-1 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.).
Key specifications for A-24559-1: Ring Set Component Parts: UPPER RING 1; LOWER RING 1; Piston Accommodation Quantity: 1; Standard Bore Diameter: 8.000 INCHES IN. 3 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.