The Valve,check, cataloged under National Stock Number 4820-00-287-4222, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Stockham Valves and Fittings Inc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-287-4222 |
| Primary Part Number | B-319 SZ 3 IN |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Stockham Valves and Fittings Inc |
| Status | ACTIVE |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Maximum Operating Temp | 406.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Maximum Operating Temp | 150.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nondefinitive Spec/std Data | 4 TYPE AND A CLASS AND 3 SIZE |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Nominal Thread Size | 3.000 INCHES ALL ENDS IN |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NPT ALL ENDS |
| Material Document and Classification | ASTMCUB000 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Style Designator | STRAIGHT THRU |
| Valve Operation Method | AUTOMATIC |
| Flow Control Device | DISK |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 198 | Conbraco Industries Inc R-P and C Valve Div (USA) |
| B-319 SZ 3 IN PRIMARY | Stockham Valves and Fittings Inc (USA) |
| B319 | Stockham Valves and Fittings Inc (USA) |
| MSS SP 80 | Manufacturers Standardization Society of the Valve and Fittings Industry Inc (USA) |
| WWV51 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 34 | Crane Co Div Valve Div (USA) |
| 0600 | Fairbanks Co the (USA) |
| 87 | Scott Valve Mfg Co (USA) |
| 103 | Kennedy Valve Div of Itt Grinnell Valve Co Inc (USA) |
| 134 | Lunkenheimer Co (USA) |
NSN 4820-00-287-4222 is a Valve,check, manufactured by Stockham Valves and Fittings Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-287-4222 has 10 cross-referenced part numbers: 198 (Conbraco Industries Inc R-P and C Valve Div), B-319 SZ 3 IN (Stockham Valves and Fittings Inc), B319 (Stockham Valves and Fittings Inc), MSS SP 80 (Manufacturers Standardization Society of the Valve and Fittings Industry Inc), WWV51 (Federal Specifications Promulgated by General Services Administration Washington DC) and 5 more.
There are 12 known substitutes for 4820-00-287-4222: 6508-00-064-4176, 4820-00-287-3097, 4820-00-287-3098 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for B-319 SZ 3 IN: Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Maximum Operating Temp: 406.0 FAHRENHEIT FIRST RESPONSE DEGF; Mounting Position: HORIZONTAL OR VERTICAL; Maximum Operating Temp: 150.0 FAHRENHEIT SECOND RESPONSE DEGF. 19 total characteristics are documented in the Federal Logistics Information System.