The Seat,aircraft, cataloged under National Stock Number 1680-00-220-2806, 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. Government technical data includes 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-00-220-2806 |
| Primary Part Number | 5437-3 |
| Item Name | Seat,aircraft |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Crestview Aerospace Llc Div Crestview Aerospace |
| Status | ACTIVE |
| Criticality Code Justification | APCS |
| Adjustability | ADJUSTABLE |
| Upholstered Portion | ARMREST AND BACK AND SEAT |
| Seating Capacity | 2 |
| Mounting Type | LEG SUPPORT |
| Adjustment Type | VERTICAL AND TILT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 5437-3 PRIMARY | Crestview Aerospace Llc Div Crestview Aerospace (USA) |
| Reference | Meaning |
|---|---|
| MIL-S-26688 | 5/1 Secondary reference U.S. Government activity |
| 4E90016-107A | 1/2 Source control — Government-approved source U.S. Government activity |
| 5437-3 | 5/9 Secondary reference U.S. Government activity |
NSN 1680-00-220-2806 is a Seat,aircraft, manufactured by Crestview Aerospace Llc Div Crestview Aerospace, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-00-220-2806 has 1 manufacturer part number on file: 5437-3 (Crestview Aerospace Llc Div Crestview Aerospace).
1 possible match (shared part number, not a government interchangeability claim): 1680-00-420-6287. Verify interchangeability with system specifications before substitution.
Key specifications for 5437-3: Overall Height: 47.000 INCHES NOMINAL IN; Criticality Code Justification: APCS; Overall Length: 43.000 INCHES NOMINAL IN; Overall Width: 25.000 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
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.