NSN 5999-01-620-4876 · NIIN 016204876 · Part number SP401A
Black Box Network Services · FSC 5999 — Miscellaneous Electrical and Electronic Components · FSG 59 — Electrical and Electronic Equipment Components · CAGE 1QFC3
Government record, cited
NSN 5999-01-620-4876 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-620-4876. Manufacturer of record part number: SP401A.
Also searched as5999-01-620-4876 ·
5999016204876 ·
NIIN 016204876 ·
01-620-4876 ·
FSC 5999 Miscellaneous Electrical and Electronic Components · CAGE 1QFC3 · SP401A
Manufacturer of record: Black Box Network Services
Identification
NSN: 5999-01-620-4876
NIIN: 016204876
FSC: 5999 — Miscellaneous Electrical and Electronic Components
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: SP401A
Manufacturer: Black Box Network Services
General Description
The Optical Isolator, cataloged under National Stock Number 5999-01-620-4876, is classified within Federal Supply Class 5999 (Miscellaneous Electrical and Electronic Components) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Black Box Network Services. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
Technical Specifications
Parameter
Value
NSN
5999-01-620-4876
Primary Part Number
SP401A
Item Name
Optical Isolator
FSC / FSG
5999 / 59 — Miscellaneous Electrical and Electronic Components
Manufacturer
Black Box Network Services
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 5999 — Miscellaneous Electrical and Electronic Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5999-00-001-1345
5999-00-001-1345 · Item name not on file
5999-00-001-1346
5999-00-001-1346 · Item name not on file
5999-00-001-1348
5999-00-001-1348 · Item name not on file
5999-00-001-1349
5999-00-001-1349 · Item name not on file
5999-00-001-1355
5999-00-001-1355 · Item name not on file
5999-00-001-1623
5999-00-001-1623 · Item name not on file
5999-00-001-2537
5999-00-001-2537 · Item name not on file
5999-00-001-2539
5999-00-001-2539 · Item name not on file
Frequently Asked Questions
What is NSN 5999-01-620-4876?
NSN 5999-01-620-4876 is a Optical Isolator, manufactured by Black Box Network Services, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
What part numbers are listed for NSN 5999-01-620-4876?
NSN 5999-01-620-4876 has 1 manufacturer part number on file: SP401A (Black Box Network Services).
What are the specifications of SP401A?
Key specifications for SP401A: Special Features: CMS DATA ID 4506, PCCN SE0834, PLISN A001; Part Name Assigned by Controlling Agency: OPTO-ISOLATOR; End Item Identification: SENTINEL CLASS FAST RESPONSE CUTTER B(FRC-B). 0 specifications are documented in the U.S. Government catalog.
Is NSN 5999-01-620-4876 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.