The Valve,check, cataloged under National Stock Number 4820-00-045-7415, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-045-7415 |
| Primary Part Number | M25675-F8 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Thread Quantity Per Inch | 16 FIRST END |
| Material | STEEL CORROSION RESISTING SEAT |
| Media for Which Designed | HYDRAULIC FLUID, PHOSPHATE-ESTER BASE FIRST RESPONSE |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES ALL ENDS IN |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | HYDRAULIC FLUID, SILICATE-ESTER BASE SECOND RESPONSE |
| Material | STEEL CORROSION RESISTING BODY |
| Media for Which Designed | FUEL/OIL, HYDROCARBON THIRD RESPONSE |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Thread Series Designator | UNF ALL ENDS |
| Connection Style | FLARED (TUBE) ALL ENDS |
| Disk Loading Method | SPRING |
| Maximum Operating Temp | 450.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Flow Control Device | DISK |
| Thread Class | 3A ALL ENDS A |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| M25675-F8 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 4C2180 | Crissair Inc Div Esco Technologies (USA) |
| J416A-8SS-5 | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
| MS24593-8 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 416-8SS-5 | Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (USA) |
| J416-8SS-5 | Curtiss-Wright Flow Control Corporation Dba Farris Engineering Div Curtiss-Wright Valves Division- Farris (USA) |
| MIL-PRF-25675 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 4820-00-045-7415 is a Valve,check, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-045-7415 has 7 cross-referenced part numbers: M25675-F8 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 4C2180 (Crissair Inc Div Esco Technologies), J416A-8SS-5 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division), MS24593-8 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 416-8SS-5 (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit) and 2 more.
There are 12 known substitutes for 4820-00-045-7415: 4820-00-045-7414, 4820-00-121-1964, 4820-00-402-5133 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for M25675-F8: Thread Quantity Per Inch: 16 FIRST END; Material: STEEL CORROSION RESISTING SEAT; Media for Which Designed: HYDRAULIC FLUID, PHOSPHATE-ESTER BASE FIRST RESPONSE; Nominal Outside Diameter Tube Accommodated: 0.500 INCHES ALL ENDS IN. 18 total characteristics are documented in the Federal Logistics Information System.