The Arrester,electrical Surge, cataloged under National Stock Number 5920-01-644-3270, 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 Infinite Electronics International, Inc. Div L-Com. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5920-01-644-3270 |
| Primary Part Number | CMSP-CAT6-2 |
| Item Name | Arrester,electrical Surge |
| FSC / FSG | 5920 / 59 — Fuses, Arrestors, Absorbers, and Protectors |
| Manufacturer | Infinite Electronics International, Inc. Div L-Com |
| Status | ACTIVE |
| Usage Design | INDOOR |
| Mounting Method | HOLE |
| Features Provided | ROHS DIRECTIVE COMPLIANCE |
| Mounting Configuration | TWO HOLES ON TWO SIDES OF THE PROTECTOR |
| 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 |
|---|---|
| CMSP-CAT6-2 PRIMARY | Infinite Electronics International, Inc. Div L-Com (USA) |
| CMSP-CAT6-2 | Lockheed Martin Australia Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| CMSP-CAT6-2 | 5/9 Secondary reference Lockheed Martin Australia Electronic Systems Pty Ltd |
NSN 5920-01-644-3270 is a Arrester,electrical Surge, manufactured by Infinite Electronics International, Inc. Div L-Com, classified under FSC 5920, Fuses, Arrestors, Absorbers, and Protectors. Status: active.
NSN 5920-01-644-3270 has 2 manufacturer part numbers on file: CMSP-CAT6-2 (Infinite Electronics International, Inc. Div L-Com), CMSP-CAT6-2 (Lockheed Martin Australia Pty Ltd).
Key specifications for CMSP-CAT6-2: Overall Height: 1.670 INCHES NOMINAL IN; Usage Design: INDOOR; Mounting Method: HOLE; Overall Length: 4.200 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.