The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-428-9787, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Atlas Valve Co. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-428-9787 |
| Primary Part Number | P10774A |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Atlas Valve Co |
| Status | ACTIVE |
| Material | RUBBER |
| Media for Which Designed | WATER, SALT |
| Pressure Rating | 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| P10774A | Atlas Valve Co (USA) |
| NAP953 | Atlas Valve Co (USA) |
| NAP953 FIND 7 | Atlas Valve Co (USA) |
NSN 4820-01-428-9787 is a Diaphragm,valve,flat, manufactured by Atlas Valve Co, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-428-9787 has 3 cross-referenced part numbers: P10774A (Atlas Valve Co), NAP953 (Atlas Valve Co), NAP953 FIND 7 (Atlas Valve Co).
There are 3 known substitutes for 4820-01-428-9787: 4820-01-376-2712, 4820-01-428-9788, 4820-01-428-9790. Verify interchangeability with system specifications before substitution.
Key specifications for P10774A: Material: RUBBER; Media for Which Designed: WATER, SALT; Pressure Rating: 150.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; End Item Identification: FORRESTAL CLASS CV. 4 total characteristics are documented in the Federal Logistics Information System.