The Block,telephone Protector, cataloged under National Stock Number 5920-00-620-3280, is classified within Federal Supply Class 5920 (Fuses, Arrestors, Absorbers, and Protectors) of the Electrical and Electronic Equipment Components group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5920-00-620-3280 |
| Item Name | Block,telephone Protector |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Status | ACTIVE |
| Overall Thickness | 0.250 INCHES NOMINAL IN |
| Shape | RECTANGULAR |
| Material | CARBON |
| Circuit Protector Block Location | GROUND SIDE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 41-1282 | 3/9 Design control — primary reference Northern Telecom Inc Telecom Distribution Div |
NSN 5920-00-620-3280 is a Block,telephone Protector, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5950-01-302-0438. Verify interchangeability with system specifications before substitution.
Key specifications for 5920-00-620-3280: Overall Thickness: 0.250 INCHES NOMINAL IN; Shape: RECTANGULAR; Overall Length: 1.250 INCHES NOMINAL IN; Overall Width: 0.370 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.