The Arrester,electrical Surge, cataloged under National Stock Number 5920-01-533-6743, 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 Fischer Custom Communications Inc. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5920-01-533-6743 |
| Primary Part Number | FCC-450B-10-NFFB |
| Item Name | Arrester,electrical Surge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Fischer Custom Communications Inc |
| Status | ACTIVE |
| Usage Design | INDOOR AND OUTDOOR |
| Body Material | ALUMINUM |
| Mounting Configuration | ONE MTG SLOT HOLE 0.536 IN. X 0.630 IN. IN |
| Nuclear Hardness Critical Feature | HARDENED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | H |
| Part Number | Manufacturer |
|---|---|
| FCC-450B-10-NFFB PRIMARY | Fischer Custom Communications Inc (USA) |
| Reference | Meaning |
|---|---|
| A3190237 | D/9 Drawing number reference only U.S. Government activity |
| A3190237-002 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5920-01-533-6743 is a Arrester,electrical Surge, manufactured by Fischer Custom Communications Inc, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-533-6743 has 1 manufacturer part number on file: FCC-450B-10-NFFB (Fischer Custom Communications Inc).
1 possible match (shared part number, not a government interchangeability claim): 5920-01-537-9312. Verify interchangeability with system specifications before substitution.
Key specifications for FCC-450B-10-NFFB: Overall Height: 1.100 INCHES NOMINAL IN; Usage Design: INDOOR AND OUTDOOR; Overall Length: 2.700 INCHES NOMINAL IN; Overall Width: 1.100 INCHES NOMINAL IN. 4 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
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.