The Valve,angle, cataloged under National Stock Number 4820-00-566-1281, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Flowserve Inc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-566-1281 |
| Primary Part Number | SW1971-2IN |
| Item Name | Valve,angle |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Flowserve Inc |
| Status | CANCELLED |
| Material | STEEL UNS K03504 BODY |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Bonnet Attachment Method | BOLTED |
| Material Document and Classification | ASTM A105 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Nominal Pipe Size Accommodated | 0.500 INCHES ALL ENDS IN |
| Operating Pressure | 235.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Valve Operation Method | MANUAL |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Operating Pressure | 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Flow Control Device | DISK |
| Connection Style | SOCKET ALL ENDS |
| Maximum Operating Temp | 1000.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Maximum Operating Temp | 100.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Style Designator | ANGLE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| SW1971-1-2IN | Flowserve Inc (USA) |
| SW1971-2IN PRIMARY | Flowserve Inc (USA) |
| SW7971 | Flowserve Inc (USA) |
| 5530W | Ashcroft Inc Dba Heise (USA) |
NSN 4820-00-566-1281 is a Valve,angle, manufactured by Flowserve Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-566-1281 has 4 cross-referenced part numbers: SW1971-1-2IN (Flowserve Inc), SW1971-2IN (Flowserve Inc), SW7971 (Flowserve Inc), 5530W (Ashcroft Inc Dba Heise).
There are 5 known substitutes for 4820-00-566-1281: 5977-00-159-2251, 4820-00-174-2600, 4820-01-237-2796 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for SW1971-2IN: Material: STEEL UNS K03504 BODY; Media for Which Designed: STEAM FIRST RESPONSE; Bonnet Attachment Method: BOLTED; Material Document and Classification: ASTM A105 ASSN STD SINGLE MATERIAL RESPONSE BODY. 17 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-566-1281 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.