The Valve,angle, cataloged under National Stock Number 4820-00-273-9343, 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 19 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-273-9343 |
| Primary Part Number | 21U1143PC4289 |
| Item Name | Valve,angle |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| Thread Class | 2A FIRST END A |
| Thread Direction | RIGHT-HAND FIRST END |
| Thread Quantity Per Inch | 18 SECOND END |
| Nominal Thread Size | 0.375 INCHES SECOND END IN |
| Style Designator | ANGLE |
| Material | COPPER ALLOY SEAT |
| Nominal Pipe Size Accommodated | 0.375 INCHES SECOND END IN |
| Thread Quantity Per Inch | 16 FIRST END |
| Thread Direction | RIGHT-HAND SECOND END |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Thread Series Designator | NPT SECOND END |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Thread Series Designator | UNF FIRST END |
| Seat Angle | 45.0 DEGREES FIRST END |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Material | NICKEL ALLOY STEM |
| Material | COPPER ALLOY BODY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| N14739PC4289 | Norfolk Naval Shipyard (USA) |
| 4289 | Norfolk Naval Shipyard (USA) |
| 21U1143PC4289 PRIMARY | Naval Ship Systems Command (USA) |
NSN 4820-00-273-9343 is a Valve,angle, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-273-9343 has 3 cross-referenced part numbers: N14739PC4289 (Norfolk Naval Shipyard), 4289 (Norfolk Naval Shipyard), 21U1143PC4289 (Naval Ship Systems Command).
There are 11 known substitutes for 4820-00-273-9343: 4320-00-005-8662, 3110-00-100-6182, 4730-00-102-9714 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 21U1143PC4289: Thread Class: 2A FIRST END A; Thread Direction: RIGHT-HAND FIRST END; Thread Quantity Per Inch: 18 SECOND END; Nominal Thread Size: 0.375 INCHES SECOND END IN. 19 total characteristics are documented in the Federal Logistics Information System.