NSN 5920-01-643-3573 · NIIN 016433573 · Part number BLN020
Littelfuse World Hq · FSC 5920 — Fuses, Arrestors, Absorbers, and Protectors · FSG 59 — Electrical and Electronic Equipment Components · CAGE 5FWY4
Government record, cited
NSN 5920-01-643-3573 — this item is cataloged by the U.S. Government under National Stock Number 5920-01-643-3573. Manufacturer of record part number: BLN020.
Also searched as5920-01-643-3573 ·
5920016433573 ·
NIIN 016433573 ·
01-643-3573 ·
FSC 5920 Fuses, Arrestors, Absorbers, and Protectors · CAGE 5FWY4 · BLN020
FSC: 5920 — Fuses, Arrestors, Absorbers, and Protectors
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: BLN020
Manufacturer: Littelfuse World Hq
General Description
The Fuse,cartridge, cataloged under National Stock Number 5920-01-643-3573, is classified within Federal Supply Class 5920 (Fuses, Arrestors, Absorbers, and Protectors) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Littelfuse World Hq. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5920-01-643-3573
Primary Part Number
BLN020
Item Name
Fuse,cartridge
FSC / FSG
5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors
Manufacturer
Littelfuse World Hq
Status
ACTIVE
Body Diameter
10.31 MILLIMETERS NOMINAL MM
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 5920 — Fuses, Arrestors, Absorbers, and Protectors
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5920-00-001-3111
5920-00-001-3111 · Item name not on file
5920-00-001-3260
FUSE,CARTRIDGE
5920-00-001-3261
FUSE,CARTRIDGE
5920-00-001-3262
ARRESTER,ELECTRICAL SURGE
5920-00-001-3263
ARRESTER,ELECTRICAL SURGE
5920-00-001-3264
5920-00-001-3264 · Item name not on file
5920-00-001-3296
5920-00-001-3296 · Item name not on file
5920-00-001-3840
5920-00-001-3840 · Item name not on file
Frequently Asked Questions
What is NSN 5920-01-643-3573?
NSN 5920-01-643-3573 is a Fuse,cartridge, manufactured by Littelfuse World Hq, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
What part numbers are listed for NSN 5920-01-643-3573?
NSN 5920-01-643-3573 has 1 manufacturer part number on file: BLN020 (Littelfuse World Hq).
What are the specifications of BLN020?
Key specifications for BLN020: Body Diameter: 10.31 MILLIMETERS NOMINAL MM; Overall Length: 38.1 MILLIMETERS NOMINAL MM; Special Features: FAST-ACTING MIDGET/20A FUSE/250V V. 1 specification is documented in the U.S. Government catalog.
Is NSN 5920-01-643-3573 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.