The Block,telephone Protector, cataloged under National Stock Number 5920-01-569-7334, 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 Corning Optical Communications Llc. 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.
| Parameter | Value |
|---|---|
| NSN | 5920-01-569-7334 |
| Primary Part Number | SPD-356-XV |
| Item Name | Block,telephone Protector |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Corning Optical Communications Llc |
| Status | ACTIVE |
| Shape | RECTANGULAR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SPD-356-XV PRIMARY | Corning Optical Communications Llc (USA) |
NSN 5920-01-569-7334 is a Block,telephone Protector, manufactured by Corning Optical Communications Llc, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-569-7334 has 1 manufacturer part number on file: SPD-356-XV (Corning Optical Communications Llc).
Key specifications for SPD-356-XV: Shape: RECTANGULAR; Special Features: COORDINATED HYBRID MOV/GAS TUBE PROTECTION, FAST REACTION TO VOLTAGE SURGES, HEAVY DUTY 3-ELEMENT GAS TUGE, SEALED HOUSING TO WITHSTAND SEVERE TEMPERATURE AND HUMIDITY CYCLES, CATEGORY 3 COMPLIANT, COMPLIANT WITH BELL CANADA PRD 96001, DC VOLTAGE BREAKDOWN(LINE-GROUND) +/- 265 V TO +/- 400 V AT < 2000 V/S V. 1 specification is 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.