The Valve,pneumatic Tank, cataloged under National Stock Number 4820-00-571-5891, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Howell Laboratories Inc Dba Howell Laboratories Inc. Government technical data includes 22 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-571-5891 |
| Primary Part Number | 4474B6 |
| Item Name | Valve,pneumatic Tank |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Howell Laboratories Inc Dba Howell Laboratories Inc |
| Status | ACTIVE |
| Media for Which Designed | REFRIGERANT 12 |
| End Connection Quantity | 2 |
| First End Thread Direction | RIGHT-HAND |
| Second End Thread Direction | RIGHT-HAND |
| Second End Connection Type | THREADED EXTERNAL TUBE |
| First End Connection Type | UNTHREADED EXTERNAL TUBE |
| Second End Style Designator | FLARED |
| Second End Thread Class | 2A A |
| Furnished Items | CAP AND CHAIN |
| Temp Rating | 160.0 FAHRENHEIT DEGF |
| Material | STEEL SPRING |
| Material | COPPER ALLOY BODY |
| First End Outside Diameter Tube Accommodated | 0.500 INCHES NOMINAL IN |
| Commercial Core Length Designator | STANDARD |
| Body Style | STRAIGHT THRU |
| Second End Relationship with First End | NOT IDENTICAL |
| Second End Outside Diameter Tube Accommodated | 0.375 INCHES NOMINAL IN |
| Core Environmental Protection | CORROSION |
| Commercial Spring Tension Rating | MEDIUM |
| Second End Seat Angle in Deg | 45.0 |
| First End Style Designator | PLAIN |
| Flow Control Device | CORE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4474B6 | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| 40429 | Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons Dba Use CAGE Code 3e2t9 for Cataloging (USA) |
| VUS3-68 3-8 | Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons Dba Use CAGE Code 3e2t9 for Cataloging (USA) |
NSN 4820-00-571-5891 is a Valve,pneumatic Tank, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-571-5891 has 3 cross-referenced part numbers: 4474B6 (Howell Laboratories Inc Dba Howell Laboratories Inc), 40429 (Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons Dba Use CAGE Code 3e2t9 for Cataloging), VUS3-68 3-8 (Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons Dba Use CAGE Code 3e2t9 for Cataloging).
There are 4 known substitutes for 4820-00-571-5891: 5961-00-493-0528, 5962-01-078-5746, 5330-01-263-2692 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4474B6: Media for Which Designed: REFRIGERANT 12; End Connection Quantity: 2; First End Thread Direction: RIGHT-HAND; Second End Thread Direction: RIGHT-HAND. 22 total characteristics are documented in the Federal Logistics Information System.