The Valve,safety Relief, cataloged under National Stock Number 4820-01-350-0174, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 10 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-350-0174 |
| Primary Part Number | 1W2834 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Nominal Outside Diameter | 0.413 INCHES ALL ENDS IN |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Connection Type | FLANGE ALL ENDS |
| Material | STEEL BODY |
| Bolt Hole Quantity | 6 ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Opening Pressure Setting | 1.0 POUNDS PER SQUARE INCH LBS |
| Style Designator | STRAIGHT THRU FLANGED ENDS NOTE:TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. |
| Nominal Thickness | 0.374 INCHES ALL ENDS IN |
| Flow Control Device | DISK |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1W2834 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 9Y611 IT 1 | Caterpillar Inc Div Caterpillar Defense (USA) |
| 4AB | Penn-Troy Mfg Inc (USA) |
NSN 4820-01-350-0174 is a Valve,safety Relief, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-350-0174 has 3 cross-referenced part numbers: 1W2834 (Caterpillar Inc Div Caterpillar Defense), 9Y611 IT 1 (Caterpillar Inc Div Caterpillar Defense), 4AB (Penn-Troy Mfg Inc).
There are 3 known substitutes for 4820-01-350-0174: 5920-00-142-7409, 6240-00-577-3422, 5340-01-460-5957. Verify interchangeability with system specifications before substitution.
Key specifications for 1W2834: Nominal Outside Diameter: 0.413 INCHES ALL ENDS IN; Flange Shape: ROUND WITH HOLES ALL ENDS; Connection Type: FLANGE ALL ENDS; Material: STEEL BODY. 10 total characteristics are documented in the Federal Logistics Information System.