The Filter,aircraft Instruments, cataloged under National Stock Number 1680-01-517-5652, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Hoffman Engineering, Llc Dba Hoffman Engineering Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | Filter,aircraft Instruments |
| FSC / FSG | 1680 — Miscellaneous Aircraft Accessories and Components (FSG 16) |
| Manufacturers | Hoffman Engineering, Llc Dba Hoffman Engineering Llc (CAGE 06097); Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (CAGE 30003) |
| Parameter | Value |
|---|---|
| NSN | 1680-01-517-5652 |
| Primary Part Number | 732-1114-138 |
| Item Name | Filter,aircraft Instruments |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Hoffman Engineering, Llc Dba Hoffman Engineering Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 732-1114-138 PRIMARY | Hoffman Engineering, Llc Dba Hoffman Engineering Llc (USA) |
| 3705AS138-1 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 723-1114-138 | 5/9 Secondary reference Hoffman Engineering, Llc Dba Hoffman Engineering Llc |
NSN 1680-01-517-5652 is a Filter,aircraft Instruments, manufactured by Hoffman Engineering, Llc Dba Hoffman Engineering Llc, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-517-5652 has 2 manufacturer part numbers on file: 732-1114-138 (Hoffman Engineering, Llc Dba Hoffman Engineering Llc), 3705AS138-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
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.