The Valve,check, cataloged under National Stock Number 4820-01-435-5949, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Floworks Usa Lp Dba Flotech Div Jacksonville. Government technical data includes 23 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-435-5949 |
| Primary Part Number | 15051C 2.50INCH |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Floworks Usa Lp Dba Flotech Div Jacksonville |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Bolt Circle Nominal Diameter | 5.500 INCHES ALL ENDS IN |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Material Document and Classification | ASTM A105 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Material Document and Classification | ASTM A216, GR WCB ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | ASTM A216, GR WCB ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Bolt Hole Nominal Diameter | 0.750 INCHES ALL ENDS IN |
| Valve Size | 2.500 INCHES IN |
| Nominal Outside Diameter | 7.000 INCHES ALL ENDS IN |
| Disk Loading Method | WEIGHT |
| Bolt Hole Quantity | 4 ALL ENDS |
| Face to Face Distance | 8.500 INCHES IN |
| Material | STEEL UNS J03002 BODY |
| Material | STEEL UNS K03504 SEAT |
| Material | STEEL UNS J03002 FLOW CONTROL DEVICE |
| Raised Face Nominal Diameter | 4.120 INCHES ALL ENDS IN |
| Valve Operation Method | AUTOMATIC |
| Raised Face Nominal Height | 0.062 INCHES ALL ENDS IN |
| Nominal Thickness | 0.690 INCHES ALL ENDS IN |
| 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 |
|---|---|
| 15051C 2.50INCH PRIMARY | Floworks Usa Lp Dba Flotech Div Jacksonville (USA) |
| Reference | Meaning |
|---|---|
| 15051C 2.50INCH | C/1 Advisory reference — outside the item-of-supply concept Southern Champion Tray Co |
NSN 4820-01-435-5949 is a Valve,check, manufactured by Floworks Usa Lp Dba Flotech Div Jacksonville, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-435-5949 has 1 manufacturer part number on file: 15051C 2.50INCH (Floworks Usa Lp Dba Flotech Div Jacksonville).
Key specifications for 15051C 2.50INCH: Flow Control Device: DISK; Flange Shape: ROUND WITH HOLES ALL ENDS; Flange Face Design: RAISED STRAIGHT ALL ENDS; Bolt Circle Nominal Diameter: 5.500 INCHES ALL ENDS IN. 23 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.