The Lining,friction,air, cataloged under National Stock Number 1680-01-473-4041, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Monadnock Company, the Dba Lisi Aerospace. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | Lining,friction,air |
| FSC / FSG | 1680 — Miscellaneous Aircraft Accessories and Components (FSG 16) |
| Manufacturers | Monadnock Company, the Dba Lisi Aerospace (CAGE 60119); Howmet Global Fastening Systems Inc. Div Tridair Products (CAGE 29372) |
| Parameter | Value |
|---|---|
| NSN | 1680-01-473-4041 |
| Primary Part Number | 121506B-2 |
| Item Name | Lining,friction,air |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Monadnock Company, the Dba Lisi Aerospace |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 121506B-2 PRIMARY | Monadnock Company, the Dba Lisi Aerospace (USA) |
| CA35888-2B PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| Reference | Meaning |
|---|---|
| 50-119-2B | 3/2 Design control — primary reference U.S. Government activity |
NSN 1680-01-473-4041 is a Lining,friction,air, manufactured by Monadnock Company, the Dba Lisi Aerospace, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-473-4041 has 2 manufacturer part numbers on file: 121506B-2 (Monadnock Company, the Dba Lisi Aerospace), CA35888-2B (Howmet Global Fastening Systems Inc. Div Tridair Products).
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.