The Valve,check, cataloged under National Stock Number 4820-01-531-5534, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Oic Valve Corp. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-531-5534 |
| Primary Part Number | 8SC6L-SW-U 1.50IN |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Oic Valve Corp |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Nominal Pipe Size Accommodated | 1.921 INCHES ALL ENDS IN |
| Connection Style | SOCKET (PIPE) ALL ENDS |
| Mounting Position | HORIZONTAL |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Material | STEEL COMP 316 SEAT |
| Material | STEEL COMP 316 FLOW CONTROL DEVICE |
| Material | STEEL COMP 316L 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 |
|---|---|
| JP5-0602-01-01 P/N 8SC6L-SW-U | Oic Valve Corp (USA) |
| 8SC6L-SW-U 1.50IN PRIMARY | Oic Valve Corp (USA) |
| Reference | Meaning |
|---|---|
| JP5-0602-01-01 | D/9 Drawing number reference only Oic Valve Corp |
NSN 4820-01-531-5534 is a Valve,check, manufactured by Oic Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-531-5534 has 2 manufacturer part numbers on file: JP5-0602-01-01 P/N 8SC6L-SW-U (Oic Valve Corp), 8SC6L-SW-U 1.50IN (Oic Valve Corp).
Key specifications for 8SC6L-SW-U 1.50IN: Flow Control Device: DISK; Nominal Pipe Size Accommodated: 1.921 INCHES ALL ENDS IN; Connection Style: SOCKET (PIPE) ALL ENDS; Mounting Position: HORIZONTAL. 11 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.