NSN 4820-01-249-3857
Part Details | PRESSURE RELIEF SAFETY HEAD
4820-01-249-3857 An item of varying shape and size consisting of a metallic body which incloses a nonreusable metallic or nonmetallic disk(s), which is designed and calibrated to burst at a given pressure. It may be used independently, or in conjunction with relief valves to relieve overpressure, and to protect relief valve(s) from corrosive conditions. Excludes VALVE, SAFETY RELIEF and PLUG, FUSIBLE. For items furnished with a disk, see HEAD AND DISK, SAFETY, PRESSURE RELIER.
Alternate Parts: 7724100623, 77-24-1006-23, SA12, SA-12, 4820-01-249-3857, 01-249-3857, 4820012493857, 012493857
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | FEB 11, 1987 | 01-249-3857 | 28139 ( HEAD, SAFETY, PRESSURE RELIEF ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 4820-01-249-3857
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 77-24-1006-23 | 32874 | BS&B SAFETY SYSTEMS, L.L.C. |
| SA-12 | 32874 | BS&B SAFETY SYSTEMS, L.L.C. |
Technical Data | NSN 4820-01-249-3857
| Characteristic | Specifications |
|---|---|
| HEAD MATERIAL | STEEL |
| HEAD TYPE | SCREW |
| HEAD SIZE | 0.500 INCHES |
| END CONNECTION TYPE | THREADED |
| BURST PRESSURE | 7925.0 PRESSURE POUNDS PER SQUARE INCH GAGE |
| BURST TEMPERATURE | 1000.0 DEG FAHRENHEIT |