The Seat,valve, cataloged under National Stock Number 4820-01-131-5981, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Zidell Valve Corp. Government technical data includes 3 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-131-5981 |
| Primary Part Number | 0403 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Zidell Valve Corp |
| Status | ACTIVE |
| Body Outside Diameter | 7.000 INCHES NOMINAL IN |
| Material | COPPER ALLOY OVERALL |
| Body Inside Diameter | 6.000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A-6683 6IN NUMBER 6 | Fairbanks Co the (USA) |
| A-6683-6-6 | Fairbanks Co the (USA) |
| 0403 PRIMARY | Zidell Valve Corp (USA) |
NSN 4820-01-131-5981 is a Seat,valve, manufactured by Zidell Valve Corp, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-131-5981 has 3 cross-referenced part numbers: A-6683 6IN NUMBER 6 (Fairbanks Co the), A-6683-6-6 (Fairbanks Co the), 0403 (Zidell Valve Corp).
There are 6 known substitutes for 4820-01-131-5981: 5905-00-100-7009, 4930-00-618-0623, 5180-00-637-2667 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 0403: Body Outside Diameter: 7.000 INCHES NOMINAL IN; Material: COPPER ALLOY OVERALL; Overall Height: 0.750 INCHES NOMINAL IN; Body Inside Diameter: 6.000 INCHES NOMINAL IN. 4 total characteristics are documented in the Federal Logistics Information System.