The Nrp,digital Power S, cataloged under National Stock Number 1680-01-646-0638, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Espey Mfg and Electronics Corp. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Nrp,digital Power S |
| FSC / FSG | 1680 — Miscellaneous Aircraft Accessories and Components (FSG 16) |
| Manufacturers | Espey Mfg and Electronics Corp (CAGE 20950); Pioneer Industries, Llc (CAGE 66200) |
| Parameter | Value |
|---|---|
| NSN | 1680-01-646-0638 |
| Primary Part Number | 77A573655P2 |
| Item Name | Nrp,digital Power S |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Espey Mfg and Electronics Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 77A573655P2 PRIMARY | Espey Mfg and Electronics Corp (USA) |
| LM-3R311-PS *AUTH DIST* PRIMARY | Pioneer Industries, Llc (USA) |
NSN 1680-01-646-0638 is a Nrp,digital Power S, manufactured by Espey Mfg and Electronics Corp, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-646-0638 has 2 manufacturer part numbers on file: 77A573655P2 (Espey Mfg and Electronics Corp), LM-3R311-PS *AUTH DIST* (Pioneer Industries, Llc).
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 1680-01-646-0638 has DEMIL Code D. 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.