# 1/2" FNPT x 1/2" FNPT Series 685 Polypropylene Check Valve with FKM Seals, 3 PSI Cracking Pressure & Hastelloy Spring

**Manufacturer:** SMC  
**MPN:** `6851390`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | SMC |
| Manufacturer name | SMC |
| Manufacturer | SMC |
| Extra Product Name | 1/2" FNPT x 1/2" FNPT Series 685 Polypropylene Check Valve with FKM Seals, 3 PSI Cracking Pressure & Hastelloy Spring |
| Weight | 0.065 |
| WeightUnit | lbs |
| Weight_Attrib | Weight |
| countryOfOrigin | USA |
| moq | 1 |
| MPN | 6851390 |
| multiple | 1 |
| qtyInStock | Out of Stock (On Order) |
| SKU | 22646 |
| tierMinQty1 | 1 |
| tierMinQty2 | 12 |
| tierMinQty3 | 24 |
| tierMinQty4 | 72 |
| tierPrice1 | 12.73 |
| tierPrice2 | 12.0935 |
| tierPrice3 | 11.457 |
| tierPrice4 | 10.8205 |
| Item Number | 22646 |
| Catalog Page Number | P-455 |
| Manufacturer Part # | 6851390 |
| Country of Origin | USA |
| Material | Polypropylene |
| Seal | FKM |
| Connection | FNPT x FNPT |
| Size | 1/2" |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| usplastic.com | 22646 | 12.73 | 1 | None | 1 |

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