The Valve,safety Relief, cataloged under National Stock Number 4820-01-556-3871, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Aerospace Systems and Components, Inc.. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-556-3871 |
| Primary Part Number | 4004-25 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Aerospace Systems and Components, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4004-25 PRIMARY | Aerospace Systems and Components, Inc. (USA) |
NSN 4820-01-556-3871 is a Valve,safety Relief, manufactured by Aerospace Systems and Components, Inc., classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-556-3871 has 1 cross-referenced part number: 4004-25 (Aerospace Systems and Components, Inc.).
There are 3 known substitutes for 4820-01-556-3871: 5305-00-833-8624, 5975-01-101-1141, 5330-01-326-8024. Verify interchangeability with system specifications before substitution.
Key specifications for 4004-25: End Item Identification: MRAP - UNIQUE NSN - USED ON 3 MRAP VARIANTS (A/C SYSTEM). 1 total characteristics are documented in the Federal Logistics Information System.