The Valve,pneumatic Tank, cataloged under National Stock Number 4820-00-640-5997, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Schrader-Bridgeport International Inc Dba Schrader Automotive. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-640-5997 |
| Primary Part Number | 645-1 |
| Item Name | Valve,pneumatic Tank |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Schrader-Bridgeport International Inc Dba Schrader Automotive |
| Status | ACTIVE |
| Material | COPPER ALLOY BODY |
| Second End Thread Direction | RIGHT-HAND |
| End Connection Quantity | 2 |
| First End Thread Direction | RIGHT-HAND |
| First End Style Designator | PLAIN |
| Body Style | STRAIGHT THRU |
| Second End Connection Type | THREADED EXTERNAL BOSS |
| Second End Style Designator | GASKET SEAL |
| Material | COPPER ALLOY SEAT |
| Core Environmental Protection | CORROSION |
| Commercial Core Length Designator | STANDARD |
| Commercial Spring Tension Rating | HIGH |
| Second End Relationship with First End | NOT IDENTICAL |
| First End Nominal Pipe Size Accommodated | 0.125 INCHES IN |
| Flow Control Device | CORE |
| First End Connection Type | THREADED EXTERNAL PIPE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 645-1 | Scovill Inc Schrader Bellows Div (USA) |
| 645-1 PRIMARY | Schrader-Bridgeport International Inc Dba Schrader Automotive (USA) |
| 4820006405997 | E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 388595PC11 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 4820-00-640-5997 is a Valve,pneumatic Tank, manufactured by Schrader-Bridgeport International Inc Dba Schrader Automotive, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-640-5997 has 4 cross-referenced part numbers: 645-1 (Scovill Inc Schrader Bellows Div), 645-1 (Schrader-Bridgeport International Inc Dba Schrader Automotive), 4820006405997 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), 388595PC11 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
There are 12 known substitutes for 4820-00-640-5997: 4820-00-242-4064, 6150-00-636-4026, 4030-00-641-3082 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 645-1: Material: COPPER ALLOY BODY; Second End Thread Direction: RIGHT-HAND; End Connection Quantity: 2; First End Thread Direction: RIGHT-HAND. 16 total characteristics are documented in the Federal Logistics Information System.