The Flapper,ramp Door, cataloged under National Stock Number 4820-00-449-8957, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bandy Manufacturing Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-449-8957 |
| Primary Part Number | 4F54308-104B |
| Item Name | Flapper,ramp Door |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bandy Manufacturing Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4F54308-104B | Bandy Manufacturing Llc (USA) |
| Reference | Meaning |
|---|---|
| EF54306-104B | 5/9 Secondary reference Lockheed Martin Services, Llc |
| EF54306-104B | 5/9 Secondary reference U.S. Government activity |
| 4F54308-104B | 3/2 Design control — primary reference U.S. Government activity |
| 4F54308-104A | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-449-8957 is a Flapper,ramp Door, manufactured by Bandy Manufacturing Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-449-8957 has 1 manufacturer part number on file: 4F54308-104B (Bandy Manufacturing Llc).
Key specifications for 4F54308-104B: End Item Identification: AIRCRAFT MODEL C5A. 0 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.
NSN 4820-00-449-8957 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.