The Valve,check, cataloged under National Stock Number 4820-00-152-1256, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Remote Controls Inc Dba Remote Controls Inc. Government technical data includes 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-152-1256 |
| Primary Part Number | 7025393-B |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Remote Controls Inc Dba Remote Controls Inc |
| Status | ACTIVE |
| Flow Control Device | BALL |
| Connection Style | FLARED (TUBE) ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | QQ-S-763,CLASS 440C,COND A FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Operating Pressure | 50.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.562 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Maximum Operating Temp | 700.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Disk Loading Method | SPRING |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Thread Class | 3A ALL ENDS A |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | STEEL CORROSION RESISTING BODY |
| Material | STEEL COMP 440C FLOW CONTROL DEVICE |
| Thread Series Designator | UNF ALL ENDS |
| 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 | F |
| Part Number | Manufacturer |
|---|---|
| 7025393-B | Remote Controls Inc Dba Remote Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 7025393 | 3/2 Design control — primary reference U.S. Government activity |
| 201700-1 | 5/2 Secondary reference U.S. Government activity |
| 201700 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-152-1256 is a Valve,check, manufactured by Remote Controls Inc Dba Remote Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-152-1256 has 1 manufacturer part number on file: 7025393-B (Remote Controls Inc Dba Remote Controls Inc).
7 possible matches (shared part number, not a government interchangeability claim): 5310-00-586-2287, 6685-01-283-1269, 4810-01-290-4974. Verify interchangeability with system specifications before substitution.
Key specifications for 7025393-B: Flow Control Device: BALL; Connection Style: FLARED (TUBE) ALL ENDS; Style Designator: STRAIGHT THRU; Material Document and Classification: QQ-S-763,CLASS 440C,COND A FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE. 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.