The Valve,lift-Check, cataloged under National Stock Number 4820-00-971-3567, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is S & L Aerospace Metals Llc. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-971-3567 |
| Primary Part Number | 128H10107-1 |
| Item Name | Valve,lift-Check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | S & L Aerospace Metals Llc |
| Status | ACTIVE |
| Material Document and Classification | QQ-S-763,CLASS 44-C,COND A FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Connection Type | THREADED INTERNAL BOSS ALL ENDS |
| Thread Class | 3B ALL ENDS |
| Disk Loading Method | SPRING |
| Valve Operation Method | AUTOMATIC |
| Offset Distance | 0.515 INCHES IN |
| Connection Style | GASKET SEAL (BOSS) ALL ENDS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Renewable Seat Ring Type | PRESSED-IN |
| Flow Control Device | POPPET |
| Mounting Position | HORIZONTAL |
| Bonnet Attachment Method | THREADED |
| Maximum Operating Temp | 160.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Bonnet Type | INSIDE SCREW |
| Material Document and Classification | QQ-A-225/4,ALLOY 2014 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
| Nominal Thread Size | 0.437 INCHES ALL ENDS IN |
| Material | ALUMINUM ALLOY 2014 BODY |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Material | STEEL COMP 440C SEAT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 128H10107-1 | Tek Precision Co Limited (USA) |
| MS16625-1125 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 128H10107-1 | Northrop Grumman Systems Corporation (USA) |
| 128H10107-1 | Northrop Grumman Systems Corporation (USA) |
| 128H10107-1 PRIMARY | S & L Aerospace Metals Llc (USA) |
| 128H10107-1 PRIMARY | Khs Corp (USA) |
NSN 4820-00-971-3567 is a Valve,lift-Check, manufactured by S & L Aerospace Metals Llc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-971-3567 has 6 cross-referenced part numbers: 128H10107-1 (Tek Precision Co Limited), MS16625-1125 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 128H10107-1 (Northrop Grumman Systems Corporation), 128H10107-1 (Northrop Grumman Systems Corporation), 128H10107-1 (S & L Aerospace Metals Llc) and 1 more.
There is 1 known substitute for 4820-00-971-3567: 5325-00-804-2786. Verify interchangeability with system specifications before substitution.
Key specifications for 128H10107-1: Material Document and Classification: QQ-S-763,CLASS 44-C,COND A FED SPEC SINGLE MATERIAL RESPONSE SEAT; Connection Type: THREADED INTERNAL BOSS ALL ENDS; Thread Class: 3B ALL ENDS; Disk Loading Method: SPRING. 21 total characteristics are documented in the Federal Logistics Information System.