The Valve,check, cataloged under National Stock Number 4820-01-450-8284, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Coffin World Water Systems, Llc Dba Coffin World Water Systems, Llc. Government technical data includes 8 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-450-8284 |
| Primary Part Number | 500311 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Coffin World Water Systems, Llc Dba Coffin World Water Systems, Llc |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Material | COPPER ALLOY BODY |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Thread Series Designator | NPT ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Nominal Thread Size | 0.375 INCHES ALL ENDS IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 500311 | Coffin World Water Systems, Llc Dba Coffin World Water Systems, Llc (USA) |
| 500311 ITEM 30 | Coffin World Water Systems, Llc Dba Coffin World Water Systems, Llc (USA) |
| 99S 3/8 | United Brass Works, Inc. Dba United Brass Works (USA) |
NSN 4820-01-450-8284 is a Valve,check, manufactured by Coffin World Water Systems, Llc Dba Coffin World Water Systems, Llc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-450-8284 has 3 cross-referenced part numbers: 500311 (Coffin World Water Systems, Llc Dba Coffin World Water Systems, Llc), 500311 ITEM 30 (Coffin World Water Systems, Llc Dba Coffin World Water Systems, Llc), 99S 3/8 (United Brass Works, Inc. Dba United Brass Works).
There are 12 known substitutes for 4820-01-450-8284: 5905-00-107-4554, 5360-00-394-6861, 5930-00-402-6417 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 500311: Thread Direction: RIGHT-HAND ALL ENDS; Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Material: COPPER ALLOY BODY; Connection Type: THREADED INTERNAL PIPE ALL ENDS. 8 total characteristics are documented in the Federal Logistics Information System.