The Valve,safety Relief, cataloged under National Stock Number 4820-01-102-3313, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-102-3313 |
| Primary Part Number | 684-1 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit |
| Status | ACTIVE |
| Valve Discharge Flow Rate | 80.0 POUNDS PER HOUR LBS |
| Connection Style | PLAIN (TUBE) FIRST END |
| Valve Operation Method | AUTOMATIC |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Bonnet Type | INSIDE SPRING |
| Flow Control Device | POPPET |
| Media for Which Designed | AIR FIRST RESPONSE |
| Material | STEEL COMP 303 FLOW CONTROL DEVICE |
| Bonnet Attachment Method | THREADED |
| Maximum Operating Temp | 225.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Adjustable Pressure Range | +1.0 TO 50.0 POUNDS PER SQUARE INCH LBS |
| Thread Direction | RIGHT-HAND SECOND END |
| Connection Style | PLAIN (PIPE) SECOND END |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Style Designator | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. |
| Material | STEEL COMP 303 STEM |
| Material Document and Classification | AISI 303 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Material Document and Classification | AISI 303 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Thread Series Designator | NPT SECOND END |
| Material | COPPER ALLOY BODY |
| Operating Pressure | 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | GAS, NATURAL SECOND RESPONSE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-01-102-3313 is a Valve,safety Relief, manufactured by Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-102-3313 has 3 cross-referenced part numbers: 684-1 (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit), EX55566 (Naval Sea Systems Command), 5735526 (Naval Sea Systems Command).
There are 10 known substitutes for 4820-01-102-3313: 3040-00-126-4202, 3417-00-213-0082, 3030-00-906-1578 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 684-1: Valve Discharge Flow Rate: 80.0 POUNDS PER HOUR LBS; Connection Style: PLAIN (TUBE) FIRST END; Valve Operation Method: AUTOMATIC; Connection Type: UNTHREADED INTERNAL TUBE FIRST END. 24 total characteristics are documented in the Federal Logistics Information System.