The Ring,piston, cataloged under National Stock Number 2810-00-182-3333, 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 Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Ring,piston |
| FSC / FSG | 2810 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components (FSG 28) |
| Manufacturers | Rolls-Royce Corporation (CAGE 63005); Allison Transmission Inc Dba Allison Transmission, Inc (CAGE 73342); Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent (CAGE 71687) |
| Parameter | Value |
|---|---|
| NSN | 2810-00-182-3333 |
| Primary Part Number | AAD9873 |
| Item Name | Ring,piston |
| FSC / FSG | 2810 / 28 — Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components |
| Manufacturer | Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent |
| Status | ACTIVE |
| 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 |
|---|---|
| 6870737 | Rolls-Royce Corporation (USA) |
| AAD9873 | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| AAD9873 PRIMARY | Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent (USA) |
| AAD9873 | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 6870737 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 2810-00-182-3333 is a Ring,piston, manufactured by Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent, classified under FSC 2810, Gasoline Reciprocating Engines, Aircraft Prime Mover; and Components. Status: active.
NSN 2810-00-182-3333 has 4 manufacturer part numbers on file: 6870737 (Rolls-Royce Corporation), AAD9873 (Allison Transmission Inc Dba Allison Transmission, Inc), AAD9873 (Sargent Aerospace & Defense, Llc Dba Airtomic Div Sargent), AAD9873 (Rolls-Royce Corporation).
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.