The Valve,safety Relief, cataloged under National Stock Number 4820-01-417-2303, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mako Compressors, Llc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-417-2303 |
| Primary Part Number | 98650/1011 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Mako Compressors, Llc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Style Designator | SCREW-IN CARTRIDGE |
| Disk Loading Method | SPRING |
| Material | COPPER ALLOY BODY |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 98650/1011 PRIMARY | Mako Compressors, Llc (USA) |
| Reference | Meaning |
|---|---|
| 4820PL0977563 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| ASC1481496 | 5/9 Secondary reference Asc Pty Ltd |
NSN 4820-01-417-2303 is a Valve,safety Relief, manufactured by Mako Compressors, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-417-2303 has 1 manufacturer part number on file: 98650/1011 (Mako Compressors, Llc).
Key specifications for 98650/1011: Flow Control Device: DISK; Style Designator: SCREW-IN CARTRIDGE; Disk Loading Method: SPRING; End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.