The Valve,restrictor Check, cataloged under National Stock Number 4820-00-705-7897, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Clary Corp Dba Clary Corp Div Clary Corporation. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-705-7897 |
| Primary Part Number | 970327-14-30-6 |
| Item Name | Valve,restrictor Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Clary Corp Dba Clary Corp Div Clary Corporation |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Connection Style | GASKET SEAL (BOSS) FIRST END |
| Mounting Position | HORIZONTAL |
| Connection Type | THREADED INTERNAL BOSS FIRST END |
| Style Designator | STRAIGHT THRU |
| Nominal Outside Diameter Tube Accommodated | 0.187 INCHES FIRST END IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Aperture Diameter | 0.297 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Seat Angle | 60.0 DEGREES FIRST END |
| Disk Loading Method | SPRING |
| Mounting Facility | CLAMP |
| Thread Class | 3B FIRST END |
| Thread Quantity Per Inch | 18 FIRST END |
| Thread Series Designator | UNF FIRST END |
| 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 |
|---|---|
| 9093995 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 970327-14-30-6 PRIMARY | Clary Corp Dba Clary Corp Div Clary Corporation (USA) |
NSN 4820-00-705-7897 is a Valve,restrictor Check, manufactured by Clary Corp Dba Clary Corp Div Clary Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-705-7897 has 2 manufacturer part numbers on file: 9093995 (U S Army Tank Automotive Command Amsta-Im-Mm), 970327-14-30-6 (Clary Corp Dba Clary Corp Div Clary Corporation).
Key specifications for 970327-14-30-6: Flow Control Device: POPPET; Connection Style: GASKET SEAL (BOSS) FIRST END; Mounting Position: HORIZONTAL; Connection Type: THREADED INTERNAL BOSS FIRST END. 17 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.