The Valve,safety Relief, cataloged under National Stock Number 4820-01-067-7533, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Rego Co a Marmon Group Co. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-067-7533 |
| Primary Part Number | 3129H |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Rego Co a Marmon Group Co |
| Status | ACTIVE |
| Media for Which Designed | HYDROGEN SECOND RESPONSE |
| Connection Style | PLAIN (PIPE) FIRST END |
| Thread Direction | RIGHT-HAND FIRST END |
| Valve Operation Method | AUTOMATIC |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Maximum Operating Temp | 165.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Disk Loading Method | SPRING |
| Thread Series Designator | NPT FIRST END |
| Nominal Thread Size | 0.500 INCHES FIRST END IN |
| Operating Pressure | 285.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Flow Control Device | CONE |
| Media for Which Designed | OXYGEN, GASEOUS FOURTH RESPONSE |
| Opening Pressure Setting | 275.0 POUNDS PER SQUARE INCH LBS |
| Style Designator | STRAIGHT THRU |
| Media for Which Designed | AIR FIRST RESPONSE |
| Material | STEEL CORROSION RESISTING OVERALL |
| Media for Which Designed | NITROGEN, GASEOUS THIRD RESPONSE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-01-067-7533 is a Valve,safety Relief, manufactured by Rego Co a Marmon Group Co, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-067-7533 has 2 cross-referenced part numbers: 3129H (Rego Co a Marmon Group Co), 26013 (Tyco Fire Products Lp).
There are 8 known substitutes for 4820-01-067-7533: 5905-00-051-5304, 4820-00-127-8818, 5905-00-197-4289 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 3129H: Media for Which Designed: HYDROGEN SECOND RESPONSE; Connection Style: PLAIN (PIPE) FIRST END; Thread Direction: RIGHT-HAND FIRST END; Valve Operation Method: AUTOMATIC. 17 total characteristics are documented in the Federal Logistics Information System.