The Valve,check, cataloged under National Stock Number 4820-00-702-6713, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ausco Inc. Government technical data includes 19 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-702-6713 |
| Primary Part Number | H149-16 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Ausco Inc |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Connection Style | SOCKET (TUBE) SECOND END |
| Connection Style | PLAIN (TUBE) FIRST END |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Type | UNTHREADED INTERNAL TUBE SECOND END |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | FED STD 66,AISI 030/SAE 30303 FED STD SINGLE MATERIAL RESPONSE BODY |
| Nominal Outside Diameter Tube Accommodated | 1.075 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 1.186 INCHES FIRST END IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Disk Loading Method | SPRING |
| Surface Treatment | PASSIVATE |
| Media for Which Designed | HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | STEEL COMP 303 BODY |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| H149-16 PRIMARY | Ausco Inc (USA) |
NSN 4820-00-702-6713 is a Valve,check, manufactured by Ausco Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-702-6713 has 1 manufacturer part number on file: H149-16 (Ausco Inc).
Key specifications for H149-16: Flow Control Device: POPPET; Connection Style: SOCKET (TUBE) SECOND END; Connection Style: PLAIN (TUBE) FIRST END; Mounting Position: HORIZONTAL OR VERTICAL. 19 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.