The Seat,bottom Spring,valve, cataloged under National Stock Number 4820-01-121-1938, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Graystone Corp. Government technical data includes 1 verified specification, 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: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-121-1938 |
| Primary Part Number | 25473N |
| Item Name | Seat,bottom Spring,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Graystone Corp |
| Status | ACTIVE |
| General Characteristics Item Description | MATL,BRASS ASTM B-16 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 25473N | Graystone Corp (USA) |
| 25473N | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| 25473N PIECE 12 | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| 13349 | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
NSN 4820-01-121-1938 is a Seat,bottom Spring,valve, manufactured by Graystone Corp, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-121-1938 has 4 cross-referenced part numbers: 25473N (Graystone Corp), 25473N (Leslie Controls, Inc. Dba Leslie Controls Inc), 25473N PIECE 12 (Leslie Controls, Inc. Dba Leslie Controls Inc), 13349 (Leslie Controls, Inc. Dba Leslie Controls Inc).
There are 5 known substitutes for 4820-01-121-1938: 5133-00-189-9294, 4820-01-121-1910, 4820-01-121-1939 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 25473N: General Characteristics Item Description: MATL,BRASS ASTM B-16. 1 total characteristics are documented in the Federal Logistics Information System.