The Valve,check, cataloged under National Stock Number 4820-01-438-3458, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-01-438-3458 |
| Primary Part Number | 803-6397404 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Sea Systems Command |
| Status | CANCELLED |
| Material | RUBBER SYNTHETIC SEAT |
| Valve Operation Method | AUTOMATIC |
| Media for Which Designed | CARBON DIOXIDE SINGLE RESPONSE |
| Material | STEEL COMP 316 BODY |
| Furnished Items and Quantity | 2 TAILPIECE |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Mounting Position | HORIZONTAL |
| Disk Loading Method | SPRING |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 6397404 | Naval Sea Systems Command (USA) |
| 415027 | Tyco Fire Products Lp (USA) |
| 72099 | Tyco Fire Products Lp (USA) |
| 27849N | Grinnell Corp Grinnell Fire Protection Systmes Div (USA) |
| 72099N | Tyco Fire Products Lp (USA) |
| 72099N | Grinnell Corp Grinnell Fire Protection Systmes Div (USA) |
| 803-6397404 PRIMARY | Naval Sea Systems Command (USA) |
| 27849 | Tyco Fire Products Lp (USA) |
| 72099N | Kidde-Fenwal, Llc (USA) |
NSN 4820-01-438-3458 is a Valve,check, manufactured by Naval Sea Systems Command, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-01-438-3458 has 9 cross-referenced part numbers: 6397404 (Naval Sea Systems Command), 415027 (Tyco Fire Products Lp), 72099 (Tyco Fire Products Lp), 27849N (Grinnell Corp Grinnell Fire Protection Systmes Div), 72099N (Tyco Fire Products Lp) and 4 more.
There are 6 known substitutes for 4820-01-438-3458: 5330-00-599-5083, 5365-01-100-0957, 5330-01-328-0859 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 803-6397404: Material: RUBBER SYNTHETIC SEAT; Valve Operation Method: AUTOMATIC; Media for Which Designed: CARBON DIOXIDE SINGLE RESPONSE; Material: STEEL COMP 316 BODY. 11 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-01-438-3458 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.