The Valve,safety Relief, cataloged under National Stock Number 4820-01-273-0493, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hyster-Yale Group, Inc.. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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 | 4820-01-273-0493 |
| Primary Part Number | 101809 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Hyster-Yale Group, Inc. |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Media for Which Designed | NITROGEN, GASEOUS THIRD RESPONSE |
| Material | COPPER ALLOY BODY |
| Opening Pressure Setting | 250.0 POUNDS PER SQUARE INCH LBS |
| Media for Which Designed | HYDROGEN SECOND RESPONSE |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Media for Which Designed | OXYGEN, GASEOUS FOURTH RESPONSE |
| Connection Style | PLAIN (PIPE) FIRST END |
| Connection Style | PLAIN,OPTIONAL END(PIPE) SECOND END |
| Maximum Operating Temp | 165.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Style Designator | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. |
| Connection Type | THREADED INTERNAL PIPE SECOND END |
| Valve Operation Method | AUTOMATIC |
| Thread Series Designator | NPT ALL ENDS |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Media for Which Designed | AIR FIRST RESPONSE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 101809 | Hyster-Yale Group, Inc. (USA) |
| 3127 | Rego Co a Marmon Group Co (USA) |
| 3127G 1/4IN. | Rego Co a Marmon Group Co (USA) |
| 101809 | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA) |
NSN 4820-01-273-0493 is a Valve,safety Relief, manufactured by Hyster-Yale Group, Inc., classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-273-0493 has 4 cross-referenced part numbers: 101809 (Hyster-Yale Group, Inc.), 3127 (Rego Co a Marmon Group Co), 3127G 1/4IN. (Rego Co a Marmon Group Co), 101809 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling).
There are 12 known substitutes for 4820-01-273-0493: 5360-00-023-1658, 3110-00-118-4474, 5315-00-213-7151 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 101809: Flow Control Device: DISK; Media for Which Designed: NITROGEN, GASEOUS THIRD RESPONSE; Material: COPPER ALLOY BODY; Opening Pressure Setting: 250.0 POUNDS PER SQUARE INCH LBS. 18 total characteristics are documented in the Federal Logistics Information System.