The Rail,aircraft Seat, cataloged under National Stock Number 1680-00-679-2020, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Crestview Aerospace Llc Div Crestview Aerospace. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Rail,aircraft Seat |
| FSC / FSG | 1680 — Miscellaneous Aircraft Accessories and Components (FSG 16) |
| Manufacturers | Crestview Aerospace Llc Div Crestview Aerospace (CAGE 23974) |
| Parameter | Value |
|---|---|
| NSN | 1680-00-679-2020 |
| Primary Part Number | 4279-2 |
| Item Name | Rail,aircraft Seat |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Crestview Aerospace Llc Div Crestview Aerospace |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 4279-2 PRIMARY | Crestview Aerospace Llc Div Crestview Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 4279-2 | 5/9 Secondary reference U.S. Government activity |
NSN 1680-00-679-2020 is a Rail,aircraft Seat, manufactured by Crestview Aerospace Llc Div Crestview Aerospace, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-00-679-2020 has 1 manufacturer part number on file: 4279-2 (Crestview Aerospace Llc Div Crestview Aerospace).
3 possible matches (shared part number, not a government interchangeability claim): 3455-01-171-5364, 5962-01-178-2448, 4930-01-360-9016. 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 1680-00-679-2020 has DEMIL Code Q. 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.