The Valve,safety Relief, cataloged under National Stock Number 4820-01-220-8828, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Aqualung Usa, Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-01-220-8828 |
| Primary Part Number | 9109-20 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Aqualung Usa, Inc |
| Status | CANCELLED |
| Bonnet Attachment Method | INTEGRAL |
| Material | STEEL CORROSION RESISTING BODY |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 190.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Flow Control Device | POPPET |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Bonnet Type | INSIDE SCREW |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4592475 | Naval Air Warfare Center Weapons Div (USA) |
| 200-015 | Kirby Morgan Dive Systems Inc (USA) |
| 9109-20 PRIMARY | Aqualung Usa, Inc (USA) |
| 200-017 PRIMARY | Kirby Morgan Dive Systems Inc (USA) |
| 9109-20 | Mar-Vel International, Inc. Dba Mar-Vel Underwater Equip (USA) |
| 200-017 | Hytech-Pommec B.v. (NLD) |
NSN 4820-01-220-8828 is a Valve,safety Relief, manufactured by Aqualung Usa, Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-01-220-8828 has 6 cross-referenced part numbers: 4592475 (Naval Air Warfare Center Weapons Div), 200-015 (Kirby Morgan Dive Systems Inc), 9109-20 (Aqualung Usa, Inc), 200-017 (Kirby Morgan Dive Systems Inc), 9109-20 (Mar-Vel International, Inc. Dba Mar-Vel Underwater Equip) and 1 more.
There are 12 known substitutes for 4820-01-220-8828: 5961-00-006-3527, 5905-00-158-5039, 5962-00-185-6630 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 9109-20: Bonnet Attachment Method: INTEGRAL; Material: STEEL CORROSION RESISTING BODY; Style Designator: STRAIGHT THRU; Operating Pressure: 190.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 10 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-01-220-8828 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.