The Protector,series Circuit, cataloged under National Stock Number 5920-01-447-0784, 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 Instrument Transformers Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5920-01-447-0784 |
| Primary Part Number | 1-OCP-200 |
| Item Name | Protector,series Circuit |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Instrument Transformers Inc |
| Status | ACTIVE |
| General Characteristics Item Description | ONE ELEMENT, RELAY CLASS PROTECTION C100 THRU C200; FREQUENCY 50 TO 400 HZ; AMBIENT TEMP RANCE -30 DEG C TO +55 DEG C; NORMAL SECONDARY CURRENT 5 AMPS AC; SHORT TIME OVERCURRENT 100 AMPS FOR 2 SECONDS; MAX CONTINUOUS CURRENT 10 AMPS THROUGH ONE ELEMENT OR 7.5 AMPS THROUGH ALL THREE INDEPENDENT ELEMENT; COPPER TERMINALS WITH BRASS SLOTTED PAN HEAD SCREWS NO. 8-32 X 1/4 WITH CUPPED WASHERS; WEIGHT 1.2 LBS; STANDARD BURDEN 2 OHMS; CLAMPING PEAK VOLTAGE LIMIT 400 V V |
| Functional Description | USED FOR OPEN CIRCUIT PROTECTION FOR RELAY CLASSES C100 THRU C200 |
| 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 |
|---|---|
| 1-OCP-200 PRIMARY | Instrument Transformers Inc (USA) |
| 3831-7 MK 65 | Point Eight Power, Llc (USA) |
| Reference | Meaning |
|---|---|
| OCPC-200-P | 5/9 Secondary reference Instrument Transformers Inc |
NSN 5920-01-447-0784 is a Protector,series Circuit, manufactured by Instrument Transformers Inc, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-447-0784 has 2 manufacturer part numbers on file: 1-OCP-200 (Instrument Transformers Inc), 3831-7 MK 65 (Point Eight Power, Llc).
Key specifications for 1-OCP-200: Overall Height: 2.000 INCHES NOMINAL IN; General Characteristics Item Description: ONE ELEMENT, RELAY CLASS PROTECTION C100 THRU C200; FREQUENCY 50 TO 400 HZ; AMBIENT TEMP RANCE -30 DEG C TO +55 DEG C; NORMAL SECONDARY CURRENT 5 AMPS AC; SHORT TIME OVERCURRENT 100 AMPS FOR 2 SECONDS; MAX CONTINUOUS CURRENT 10 AMPS THROUGH ONE ELEMENT OR 7.5 AMPS THROUGH ALL THREE INDEPENDENT ELEMENT; COPPER TERMINALS WITH BRASS SLOTTED PAN HEAD SCREWS NO. 8-32 X 1/4 WITH CUPPED WASHERS; WEIGHT 1.2 LBS; STANDARD BURDEN 2 OHMS; CLAMPING PEAK VOLTAGE LIMIT 400 V V; Overall Length: 5.000 INCHES NOMINAL IN; Overall Width: 3.700 INCHES NOMINAL IN. 2 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.