The Polarity Switch Assembly, cataloged under National Stock Number 4920-01-043-2541, is classified within Federal Supply Class 4920 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Microwave Power Products, Inc. Div Microwave Power Products Division. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-043-2541 |
| Primary Part Number | 643431 |
| Item Name | Polarity Switch Assembly |
| FSC / FSG | 4920 / 49 — No Item Name Available |
| Manufacturer | Microwave Power Products, Inc. Div Microwave Power Products Division |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 643431 PRIMARY | Microwave Power Products, Inc. Div Microwave Power Products Division (USA) |
NSN 4920-01-043-2541 is a Polarity Switch Assembly, manufactured by Microwave Power Products, Inc. Div Microwave Power Products Division, classified under FSC 4920 (No Item Name Available). Status: active.
NSN 4920-01-043-2541 has 1 cross-referenced part number: 643431 (Microwave Power Products, Inc. Div Microwave Power Products Division).
There is 1 known substitute for 4920-01-043-2541: 5330-00-291-7462. Verify interchangeability with system specifications before substitution.
Key specifications for 643431: End Item Identification: AIRCRAFT MODEL S-3A A. 1 total characteristics are documented in the Federal Logistics Information System.