The Barrier Filter,airc, cataloged under National Stock Number 1680-01-563-0788, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is The Hilliard Corp. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Barrier Filter,airc |
| FSC / FSG | 1680 — Miscellaneous Aircraft Accessories and Components (FSG 16) |
| Manufacturers | The Hilliard Corp (CAGE 28718) |
| Parameter | Value |
|---|---|
| NSN | 1680-01-563-0788 |
| Primary Part Number | PFA928-10-A |
| Item Name | Barrier Filter,airc |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | The Hilliard Corp |
| 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 |
|---|---|
| PFA928-10-A PRIMARY | The Hilliard Corp (USA) |
| Reference | Meaning |
|---|---|
| PFA928-10-A | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| PFA928-10-A | C/1 Advisory reference — outside the item-of-supply concept Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| PFA928-10-A | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| PFA928-10-A | 5/9 Secondary reference Schweizer Aircraft Corp. |
NSN 1680-01-563-0788 is a Barrier Filter,airc, manufactured by The Hilliard Corp, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-563-0788 has 1 manufacturer part number on file: PFA928-10-A (The Hilliard Corp).
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 1680-01-563-0788 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.