The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-146-8197, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Pneudraulics, Inc.. Government technical data includes 29 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-01-146-8197 |
| Primary Part Number | 4612-1 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Pneudraulics, Inc. |
| Status | CANCELLED |
| Second End Nominal Thread Size | 0.719 INCHES IN |
| Flow Control Device | POPPET |
| First End Nominal Thread Size | 0.844 INCHES IN |
| Material | STEEL COMP 440A SEAT A |
| End Connection Quantity | 3 |
| Temp Adjustability | NOT ADJUSTABLE |
| Material | STEEL COMP 440A FLOW CONTROL DEVICE A |
| Third End Nominal Thread Size | 0.438 INCHES IN |
| Second End Thread Series Designator | UNS |
| Third End Thread Series Designator | UNS |
| First End Thread Series Designator | UNS |
| Valve Discharge Flow Rate | 15.0 GALLONS PER MINUTE |
| Body Style | TEE GIVE "ADQL" AND "ADQM" ONLY WHEN FLANGED ALL ENDS |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | NOT IDENTICAL |
| Third End Outside Diameter Tube Accommodated | 0.250 INCHES NOMINAL IN |
| Second End Style Designator | PLAIN |
| Third End Thread Direction | RIGHT-HAND |
| Third End Style Designator | PLAIN |
| Second End Outside Diameter Tube Accommodated | 0.500 INCHES NOMINAL IN |
| Media for Which Designed | HYDROCARBON FUELS AND OILS |
| Third End Thread Class | 3A A |
| First End Style Designator | PLAIN |
| Second End Thread Direction | RIGHT-HAND |
| First End Thread Class | 3A A |
| Third End Connection Type | THREADED EXTERNAL TUBE |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Second End Thread Class | 3A A |
| First End Outside Diameter Tube Accommodated | 0.625 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 4820-01-146-8197 is a Valve,relief,pressure and Temper, manufactured by Pneudraulics, Inc., classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-01-146-8197 has 3 cross-referenced part numbers: 4612-1 (Pneudraulics, Inc.), 4612 (Pneudraulics, Inc.), 10124650 (Nimikkeistokeskus Ncb Finland).
There are 8 known substitutes for 4820-01-146-8197: 1315-00-028-4838, 5120-00-967-2025, 3040-01-291-5266 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4612-1: Second End Nominal Thread Size: 0.719 INCHES IN; Flow Control Device: POPPET; First End Nominal Thread Size: 0.844 INCHES IN; Special Features: TEMPERATURE RATING WAS PREVIOUSLY NOTATED WITH SAC CODING AS 1A 65.0 DEGREES FAHRENHEIT AND 1B AS 275.0 DEGREES FAHRENHEIT; BODY MATERIAL AL2024,ALUMINUM ALLOY 2024, T4 A. 30 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-01-146-8197 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.