The Valve,safety Relief, cataloged under National Stock Number 4820-00-772-7801, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Allen Aircraft Products Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-772-7801 |
| Primary Part Number | 4D107 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Allen Aircraft Products Inc |
| Status | ACTIVE |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Flow Control Device | STEM |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Connection Type | THREADED EXTERNAL BOSS ALL ENDS |
| Material | ALUMINUM BODY |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4D107 PRIMARY | Allen Aircraft Products Inc (USA) |
NSN 4820-00-772-7801 is a Valve,safety Relief, manufactured by Allen Aircraft Products Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-772-7801 has 1 cross-referenced part number: 4D107 (Allen Aircraft Products Inc).
There is 1 known substitute for 4820-00-772-7801: 6150-00-125-8457. Verify interchangeability with system specifications before substitution.
Key specifications for 4D107: Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS; Media for Which Designed: AIR SINGLE RESPONSE; Flow Control Device: STEM; Nominal Thread Size: 0.438 INCHES ALL ENDS IN. 7 total characteristics are documented in the Federal Logistics Information System.