The Valve,check, cataloged under National Stock Number 4820-01-481-4337, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-481-4337 |
| Primary Part Number | 47245K13 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Type | UNTHREADED EXTERNAL HOSE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material | PLASTIC POLYPROPYLENE BODY |
| 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 |
|---|---|
| 47245K13 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| 47245K53 | 5/9 Secondary reference Mcmaster-Carr Supply Co |
| 863-000407 | 5/9 Secondary reference Guild Associates Inc |
NSN 4820-01-481-4337 is a Valve,check, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-481-4337 has 1 manufacturer part number on file: 47245K13 (Mcmaster-Carr Supply Co).
Key specifications for 47245K13: Mounting Position: HORIZONTAL OR VERTICAL; Connection Type: UNTHREADED EXTERNAL HOSE ALL ENDS; Style Designator: STRAIGHT THRU; Special Features: POPYPROPYLENE BODY WITH A VITON DIAPHRAM. FOR CORROSIVE AND ULTRA-PURE APPLICATIONS. MAXIUM TEMPERATURE RATING OF 180 F. IT'S A FREE FLOATING DIAPHRAM THAT RESPONDS TO EVEN THE SLIGHEST PRESSURE CHANGE. VALVES WILL OPERATE IN ANY POSITION, PROVIDING RAPID RESPONSE TO FREEFLOW AND NO FLOW.. 4 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.