The Piston,inner, cataloged under National Stock Number 1680-00-995-4841, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Piston,inner |
| FSC / FSG | 1680 — Miscellaneous Aircraft Accessories and Components (FSG 16) |
| Manufacturers | Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc (CAGE 12116) |
| Parameter | Value |
|---|---|
| NSN | 1680-00-995-4841 |
| Primary Part Number | 2261-50 |
| Item Name | Piston,inner |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 2261-50 PRIMARY | Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc (USA) |
NSN 1680-00-995-4841 is a Piston,inner, manufactured by Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-00-995-4841 has 1 manufacturer part number on file: 2261-50 (Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc).
2 possible matches (shared part number, not a government interchangeability claim): 2995-01-006-1282, 5910-01-437-9057. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1680-00-995-4841 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.