The Valve,check, cataloged under National Stock Number 4820-00-050-9662, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Saf Industries Llc Dba Saf Industries Llc Div Garkenyon. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-050-9662 |
| Primary Part Number | 3R1444-1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Saf Industries Llc Dba Saf Industries Llc Div Garkenyon |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Connection Style | FLARELESS ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | QQ-A-200/3 FED STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | QQ-A-225/6 FED STD SINGLE MATERIAL RESPONSE SEAT |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Seat Angle | 12.0 DEGREES FIRST END |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | ANODIZE |
| Media for Which Designed | HYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 20 FIRST END |
| Material | ALUMINUM ALLOY 2024 BODY |
| Material | ALUMINUM FLOW CONTROL DEVICE |
| Material | ALUMINUM ALLOY 2024 SEAT |
| Thread Series Designator | UNF ALL ENDS |
| 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 |
|---|---|
| 3R1444-1 PRIMARY | Saf Industries Llc Dba Saf Industries Llc Div Garkenyon (USA) |
| Reference | Meaning |
|---|---|
| 670106-1 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-00-050-9662 is a Valve,check, manufactured by Saf Industries Llc Dba Saf Industries Llc Div Garkenyon, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-050-9662 has 1 manufacturer part number on file: 3R1444-1 (Saf Industries Llc Dba Saf Industries Llc Div Garkenyon).
1 possible match (shared part number, not a government interchangeability claim): 6210-00-443-9992. Verify interchangeability with system specifications before substitution.
Key specifications for 3R1444-1: Flow Control Device: POPPET; Connection Style: FLARELESS ALL ENDS; Style Designator: STRAIGHT THRU; Material Document and Classification: QQ-A-200/3 FED STD SINGLE MATERIAL RESPONSE BODY. 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.