The Diaphragm,speaking, cataloged under National Stock Number 4240-00-790-4813, is classified within Federal Supply Class 4240 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Mine Safety Appliances Company. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Item Name | Diaphragm,speaking |
| FSC / FSG | 4240 — No Item Name Available (FSG 42) |
| Manufacturers | Mine Safety Appliances Company (CAGE 55799) |
| Parameter | Value |
|---|---|
| NSN | 4240-00-790-4813 |
| Primary Part Number | 81434 |
| Item Name | Diaphragm,speaking |
| FSC / FSG | 4240 / 42 — No Item Name Available |
| Manufacturer | Mine Safety Appliances Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4240-00-790-4813 is a Diaphragm,speaking, manufactured by Mine Safety Appliances Company, classified under FSC 4240 (No Item Name Available). Status: active.
NSN 4240-00-790-4813 has 2 cross-referenced part numbers: D48418 (Mine Safety Appliances Company), 81434 (Mine Safety Appliances Company).
There are 4 known substitutes for 4240-00-790-4813: 9540-00-402-0373, 6105-00-635-0799, 4920-00-929-4405 and 1 more. Verify interchangeability with system specifications before substitution.