The Valve,check, cataloged under National Stock Number 4820-01-012-6844, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-012-6844 |
| Primary Part Number | T916391 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| Status | ACTIVE |
| Connection Type | THREADED INTERNAL BOSS ALL ENDS |
| Disk Loading Method | SPRING |
| Thread Class | 3B ALL ENDS |
| Material | COPPER ALLOY BODY |
| Flow Control Device | POPPET |
| Valve Operation Method | AUTOMATIC |
| Connection Style | GASKET SEAL (BOSS) ALL ENDS |
| Maximum Operating Temp | 200.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | STEEL COMP 304 FLOW CONTROL DEVICE |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT |
| Thread Series Designator | UNF ALL ENDS |
| Material Document and Classification | FED-STD-66, AISI 304/SAE 30304 FED STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| H7832 | Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA) |
| H7832PC541 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| H7832PC541 | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| 916391 | Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA) |
| H7832PC541 | Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA) |
| T916391 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| T916391 | Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA) |
| 916391 | Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA) |
| T916391 PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| H7832PC541 | Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA) |
| 493-8B1-2 | Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (USA) |
NSN 4820-01-012-6844 is a Valve,check, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-012-6844 has 11 cross-referenced part numbers: H7832 (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture), H7832PC541 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), H7832PC541 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), 916391 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand), H7832PC541 (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture) and 6 more.
There are 4 known substitutes for 4820-01-012-6844: 4140-00-849-9295, 5365-01-010-8062, 3040-01-264-3897 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for T916391: Connection Type: THREADED INTERNAL BOSS ALL ENDS; Disk Loading Method: SPRING; Thread Class: 3B ALL ENDS; Material: COPPER ALLOY BODY. 17 total characteristics are documented in the Federal Logistics Information System.