The Valve,safety Relief, cataloged under National Stock Number 4820-01-233-4773, 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 21 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-233-4773 |
| Primary Part Number | 916772 |
| Item Name | Valve,safety Relief |
| 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 |
| Raised Face Nominal Height | 0.062 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 4 ALL ENDS |
| Bolt Hole Nominal Diameter | 0.750 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Material | COPPER ALLOY BODY |
| Connection Type | FLANGE ALL ENDS |
| First Connection Face to Centerline Distance | 3.750 INCHES IN |
| Bonnet Type | INSIDE SPRING |
| Bonnet Attachment Method | THREADED |
| Valve Size | 1.250 INCHES IN |
| Nominal Outside Diameter | 5.250 INCHES ALL ENDS IN |
| Flow Control Device | PISTON |
| Second Connection Face to Centerline Distance | 3.750 INCHES IN |
| Valve Operation Method | AUTOMATIC |
| Bolt Circle Nominal Diameter | 3.875 INCHES ALL ENDS IN |
| Style Designator | ANGLE FLANGED ENDS |
| Nominal Thickness | 0.750 INCHES ALL ENDS IN |
| Raised Face Nominal Diameter | 2.500 INCHES ALL ENDS IN |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Adjustable Pressure Range | +30.0 TO 100.0 POUNDS PER SQUARE INCH LBS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 916772 | Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA) |
| H-8205 ITEM 596 | Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA) |
| A-5509 | Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA) |
| H-8205 ITEM 596 | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| H-8205 ITEM 596 | Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA) |
| H-8205 ITEM 596 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| H-8205 | Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA) |
| VBF-6RWS | Ruthman Pump and Engineering Inc Dba Fulflo Specialties Co Div Fulflo Specialties Co. (USA) |
| 916772 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| 916772 PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| 916772 | Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA) |
NSN 4820-01-233-4773 is a Valve,safety Relief, 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 4820-01-233-4773 has 11 cross-referenced part numbers: 916772 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand), H-8205 ITEM 596 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand), A-5509 (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture), H-8205 ITEM 596 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), H-8205 ITEM 596 (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture) and 6 more.
There are 9 known substitutes for 4820-01-233-4773: 2825-00-739-4726, 5365-00-761-7579, 2825-01-085-8581 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 916772: Raised Face Nominal Height: 0.062 INCHES ALL ENDS IN; Bolt Hole Quantity: 4 ALL ENDS; Bolt Hole Nominal Diameter: 0.750 INCHES ALL ENDS IN; Disk Loading Method: SPRING. 21 total characteristics are documented in the Federal Logistics Information System.