The Valve,check, cataloged under National Stock Number 4820-01-702-2657, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ferguson Enterprises Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-702-2657 |
| Primary Part Number | SC-150 2-1/2 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Ferguson Enterprises Llc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Material Document and Classification | A351 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE BODY |
| Valve Size | 2.500 INCHES IN |
| Face to Face Distance | 8.500 INCHES IN |
| Material | STEEL CORROSION RESISTING BODY |
| Raised Face Nominal Diameter | 4.130 INCHES ALL ENDS IN |
| Valve Operation Method | AUTOMATIC |
| Raised Face Nominal Height | 0.060 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 |
|---|---|
| SC-150 2-1/2 PRIMARY | Ferguson Enterprises Llc (USA) |
| Reference | Meaning |
|---|---|
| SC-150 2-1/2 | 5/9 Secondary reference Ferguson Enterprises Div Ferguson Enterprises |
NSN 4820-01-702-2657 is a Valve,check, manufactured by Ferguson Enterprises Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-702-2657 has 1 manufacturer part number on file: SC-150 2-1/2 (Ferguson Enterprises Llc).
Key specifications for SC-150 2-1/2: Flow Control Device: DISK; Flange Face Design: RAISED STRAIGHT ALL ENDS; Connection Type: FLANGE ALL ENDS; Style Designator: STRAIGHT THRU FLANGED ENDS. 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.