The Valve,check, cataloged under National Stock Number 4820-00-388-9761, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Arkwin Industries, Inc. Dba Arkwin Industries Inc. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-388-9761 |
| Primary Part Number | 1011049-6 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Arkwin Industries, Inc. Dba Arkwin Industries Inc |
| Status | ACTIVE |
| Thread Class | 2A SECOND END A |
| Style Designator | STRAIGHT THRU |
| Connection Type | THREADED EXTERNAL BOSS FIRST END |
| Thread Direction | RIGHT-HAND FIRST END |
| Thread Quantity Per Inch | 20 FIRST END |
| Thread Class | 2A FIRST END A |
| Flow Control Device | POPPET |
| Material | STEEL BODY |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Thread Series Designator | UNEF SECOND END |
| Disk Loading Method | SPRING |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Thread Series Designator | UN FIRST END |
| Material | STEEL CORROSION RESISTING SEAT |
| Thread Direction | RIGHT-HAND SECOND END |
| Nominal Thread Size | 0.437 INCHES SECOND END IN |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1011049-6 PRIMARY | Arkwin Industries, Inc. Dba Arkwin Industries Inc (USA) |
NSN 4820-00-388-9761 is a Valve,check, manufactured by Arkwin Industries, Inc. Dba Arkwin Industries Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-388-9761 has 1 cross-referenced part number: 1011049-6 (Arkwin Industries, Inc. Dba Arkwin Industries Inc).
There are 2 known substitutes for 4820-00-388-9761: 2930-01-010-4931, 4010-01-259-2498. Verify interchangeability with system specifications before substitution.
Key specifications for 1011049-6: Thread Class: 2A SECOND END A; Style Designator: STRAIGHT THRU; Connection Type: THREADED EXTERNAL BOSS FIRST END; Thread Direction: RIGHT-HAND FIRST END. 21 total characteristics are documented in the Federal Logistics Information System.