The Valve,stop-Check, cataloged under National Stock Number 4820-01-458-2442, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Velan Valve Corp.. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-458-2442 |
| Primary Part Number | F08-2084B-02TY |
| Item Name | Valve,stop-Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Velan Valve Corp. |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND ALL ENDS |
| Furnished Items and Quantity | 1 HANDWHEEL |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Mounting Position | HORIZONTAL |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Material Document and Classification | ASTM A105 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | ASTM A479 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Valve Size | 2.000 INCHES IN |
| Bonnet Type | PACKING RETAINING |
| Nominal Outside Diameter | 6.400 INCHES ALL ENDS IN |
| Face to Face Distance | 11.500 INCHES IN |
| Material | STEEL BODY |
| Material | STEEL COMP 410 STEM |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| IF-2084B-02TY-01 2.OOO IN. | Velan Valve Corp. (USA) |
| F08-2084B-02TY PRIMARY | Velan Valve Corp. (USA) |
| Reference | Meaning |
|---|---|
| IF-2084B-02TY-01 | D/9 Drawing number reference only Velan Valve Corp. |
NSN 4820-01-458-2442 is a Valve,stop-Check, manufactured by Velan Valve Corp., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-458-2442 has 2 manufacturer part numbers on file: IF-2084B-02TY-01 2.OOO IN. (Velan Valve Corp.), F08-2084B-02TY (Velan Valve Corp.).
Key specifications for F08-2084B-02TY: Flow Control Device: DISK; Flange Shape: ROUND ALL ENDS; Furnished Items and Quantity: 1 HANDWHEEL; Flange Face Design: RAISED STRAIGHT ALL ENDS. 16 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.