The Valve,check, cataloged under National Stock Number 4820-01-422-5724, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Honeywell International Inc Div Aerospace-South Bend (bendix Dr). Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-422-5724 |
| Primary Part Number | 8230516-0702 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND ALL ENDS |
| Flange Face Design | PLAIN FIRST END |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Type | FLANGE FIRST END |
| Style Designator | STRAIGHT THRU |
| Maximum Operating Temp | 700.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Nominal Outside Diameter | 8.500 INCHES FIRST END IN |
| Mounting Facility | WAFER |
| Material | STEEL CORROSION RESISTING BODY |
| Opening Pressure Setting | 7.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | AUTOMATIC |
| Nominal Thickness | 0.375 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 |
|---|---|
| 8230516-0702 | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA) |
| Reference | Meaning |
|---|---|
| 6 FIV-30-SS-M-7 | 3/9 Design control — primary reference International Valve Corp Dba Check-All Valve Mfg. Co. |
| 8230516 | 7/1 Vendor item drawing reference Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
NSN 4820-01-422-5724 is a Valve,check, manufactured by Honeywell International Inc Div Aerospace-South Bend (bendix Dr), classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-422-5724 has 1 manufacturer part number on file: 8230516-0702 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-423-1798. Verify interchangeability with system specifications before substitution.
Key specifications for 8230516-0702: Flow Control Device: DISK; Flange Shape: ROUND ALL ENDS; Flange Face Design: PLAIN FIRST END; Mounting Position: HORIZONTAL OR VERTICAL. 13 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.