The Valve,check, cataloged under National Stock Number 4820-01-106-2987, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-106-2987 |
| Primary Part Number | 842-154-070-601 UNDRILLED FLANGE |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | ACTIVE |
| Flange Shape | ROUND FIRST END |
| Flange Face Design | PLAIN FIRST END |
| Connection Type | FLANGE FIRST END |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Nominal Outside Diameter | 5.062 INCHES FIRST END 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 |
|---|---|
| 842-154-070-601 UNDRILLED FLANGE PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| SS845-2110236 ASSEMBLY 6FAMOD | 5/1 Secondary reference U.S. Government activity |
| 842-154-070-601 UNDRILLED FLANGE | 5/9 Secondary reference National Oilwell |
NSN 4820-01-106-2987 is a Valve,check, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-106-2987 has 1 manufacturer part number on file: 842-154-070-601 UNDRILLED FLANGE (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
Key specifications for 842-154-070-601 UNDRILLED FLANGE: Flange Shape: ROUND FIRST END; Flange Face Design: PLAIN FIRST END; Connection Type: FLANGE FIRST END; Style Designator: STRAIGHT THRU FLANGED ENDS. 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.