The Coupler,optoelectronic, cataloged under National Stock Number 5980-00-371-8250, is classified within Federal Supply Class 5980 (Optoelectronic Devices and Associated Hardware) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Siemens Microelectronics Inc Optoelectronics Div. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5980-00-371-8250 |
| Primary Part Number | IL74 |
| Item Name | Coupler,optoelectronic |
| FSC / FSG | 5980 / 59 — Optoelectronic Devices and Associated Hardware |
| Manufacturer | Siemens Microelectronics Inc Optoelectronics Div |
| Status | ACTIVE |
| General Characteristics Item Description | GALLIUM ARSENIDE LED AND SILICON NPN PHOTORANSISTOR,M 55 TO P 100 DEG C OPERATING TEMP,0.365 IN. LG,0.260 IN. W,0.180 IN. H 6 PIN DUAL IN-LINE PKG IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5980-00-371-8250 is a Coupler,optoelectronic, manufactured by Siemens Microelectronics Inc Optoelectronics Div, classified under FSC 5980, Optoelectronic Devices and Associated Hardware. Status: active.
NSN 5980-00-371-8250 has 3 manufacturer part numbers on file: L1T74 (Siemens Microelectronics Inc Optoelectronics Div), IL74 (Siemens Microelectronics Inc Optoelectronics Div), IS0LIT74 (Siemens Microelectronics Inc Optoelectronics Div).
1 possible match (shared part number, not a government interchangeability claim): 5962-01-410-7335. Verify interchangeability with system specifications before substitution.
Key specifications for IL74: General Characteristics Item Description: GALLIUM ARSENIDE LED AND SILICON NPN PHOTORANSISTOR,M 55 TO P 100 DEG C OPERATING TEMP,0.365 IN. LG,0.260 IN. W,0.180 IN. H 6 PIN DUAL IN-LINE PKG IN. 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 5980-00-371-8250 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.