The Synchro Assembly, cataloged under National Stock Number 5990-00-949-8451, is classified within Federal Supply Class 5990 (Synchros and Resolvers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Synchro Assembly |
| FSC / FSG | 5990 — Synchros and Resolvers (FSG 59) |
| Manufacturers | L3 Technologies, Inc. Div L3 Keo (CAGE 34228) |
| Parameter | Value |
|---|---|
| NSN | 5990-00-949-8451 |
| Primary Part Number | 686F012718 |
| Item Name | Synchro Assembly |
| FSC / FSG | 5990 / 59 — Synchros and Resolvers |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| 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 |
|---|---|
| 686F012718 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| 012718 | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| F686-103-2 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
| 686F012718 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5990-00-949-8451 is a Synchro Assembly, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5990, Synchros and Resolvers. Status: active.
NSN 5990-00-949-8451 has 2 manufacturer part numbers on file: 686F012718 (L3 Technologies, Inc. Div L3 Keo), 012718 (L3 Technologies, Inc. Div L3 Keo).
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 5990-00-949-8451 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.