The Valve,check, cataloged under National Stock Number 4820-01-391-9001, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eaton Aerospace Llc Dba Eaton Aerospace Jackson. This item has 1 commercial cross-reference from 1 manufacturer, 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 | 4820-01-391-9001 |
| Primary Part Number | 42540 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Eaton Aerospace Llc Dba Eaton Aerospace Jackson |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 42540 PRIMARY | Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA) |
NSN 4820-01-391-9001 is a Valve,check, manufactured by Eaton Aerospace Llc Dba Eaton Aerospace Jackson, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-391-9001 has 1 cross-referenced part number: 42540 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).
There are 5 known substitutes for 4820-01-391-9001: 2940-00-127-9440, 2805-00-737-8881, 5965-00-783-8237 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 42540: End Item Identification: LOCKHEED L1011 AIRCRAFT. 1 total characteristics are documented in the Federal Logistics Information System.