The Valve,globe, cataloged under National Stock Number 4820-00-276-9021, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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 | 4820-00-276-9021 |
| Primary Part Number | 21U1143 PIECE 4287 |
| Item Name | Valve,globe |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| Media for Which Designed | WATER-OIL-GAS THIRD RESPONSE |
| Thread Class | 2A ALL ENDS A |
| Material | NICKEL ALLOY 400 OR NICKEL ALLOY R-405 FLOW CONTROL DEVICE |
| Valve Operation Method | MANUAL |
| Material | COPPER ALLOY BODY |
| Flow Control Device | DISK |
| Bonnet Type | INSIDE SCREW |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Features Provided | BONNET PACKING |
| Offset Distance | 0.500 INCHES IN |
| Operating Pressure | 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Mounting Facility | LUG(S) |
| Connection Style | FLARED (TUBE) ALL ENDS |
| Material Document and Classification | QQ-N-281 FED SPEC ALL MATERIAL RESPONSES FLOW CONTROL DEVICE |
| Thread Quantity Per Inch | 16 ALL ENDS |
| Material | COPPER ALLOY SEAT |
| Bonnet Attachment Method | THREADED |
| Media for Which Designed | WATER, SALT SECOND RESPONSE |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Furnished Items and Quantity | 2 NUT |
| Material Document and Classification | QQ-N-281 FED SPEC ALL MATERIAL RESPONSES STEM |
| Seat Angle | 45.0 DEGREES ALL ENDS |
| Thread Series Designator | UNF ALL ENDS |
| Material | NICKEL ALLOY 400 OR NICKEL ALLOY R-405 STEM |
| Style Designator | STRAIGHT THRU W/OFFSET |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES ALL ENDS IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 21U1143 PIECE 4287 PRIMARY | Naval Ship Systems Command (USA) |
| 5154 | Henry Technologies, Inc. (USA) |
NSN 4820-00-276-9021 is a Valve,globe, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-276-9021 has 2 cross-referenced part numbers: 21U1143 PIECE 4287 (Naval Ship Systems Command), 5154 (Henry Technologies, Inc.).
There are 9 known substitutes for 4820-00-276-9021: 1650-00-011-0844, 6625-00-028-3542, 4820-00-036-1738 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 21U1143 PIECE 4287: Media for Which Designed: WATER-OIL-GAS THIRD RESPONSE; Thread Class: 2A ALL ENDS A; Material: NICKEL ALLOY 400 OR NICKEL ALLOY R-405 FLOW CONTROL DEVICE; Valve Operation Method: MANUAL. 29 total characteristics are documented in the Federal Logistics Information System.