The Processor,multiplex, cataloged under National Stock Number 4920-01-468-8951, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Sechan Electronics Inc Dba Sechan Electronics Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4920-01-468-8951 |
| Primary Part Number | 577700-1000 |
| Item Name | Processor,multiplex |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Sechan Electronics Inc Dba Sechan Electronics Inc |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 577700-1000 | Onboard Software Inc Div Bae Systems Science & Technology Inc. (USA) |
| 577700-1000 PRIMARY | Sechan Electronics Inc Dba Sechan Electronics Inc (USA) |
| Reference | Meaning |
|---|---|
| 577700-100D | 5/9 Secondary reference Onboard Software Inc Div Bae Systems Science & Technology Inc. |
NSN 4920-01-468-8951 is a Processor,multiplex, manufactured by Sechan Electronics Inc Dba Sechan Electronics Inc, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-468-8951 has 2 manufacturer part numbers on file: 577700-1000 (Onboard Software Inc Div Bae Systems Science & Technology Inc.), 577700-1000 (Sechan Electronics Inc Dba Sechan Electronics Inc).
Key specifications for 577700-1000: Criticality Code Justification: FEAT; Special Features: MUX, MULTIPLEXER PROCESSOR UNIT USED ON THE MADARS II AND HAS BEEN SINCE IN STOCKCLASS 4920 SINCE 1981; USED FOR MAINTENANCE ANALYSIS DETECTION AND REPORTING SYSTEM FOR THE C-5A/B AND C AIRCRAFT; ITEM IS ESD SENSATIVE A; Part Name Assigned by Controlling Agency: PREVIOUS NAME MULTIPLEXER; End Item Identification: C-5A/B/C ACFT A. 1 specification is 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 4920-01-468-8951 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.