The Valve,safety Relief, cataloged under National Stock Number 4820-00-494-0755, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Laser Technology Inc. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-494-0755 |
| Primary Part Number | 8661132 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Laser Technology Inc |
| Status | CANCELLED |
| Nominal Thread Size | 0.125 INCHES FIRST END0.125 INCHES FIRST END IN |
| Features Provided | PRESSURE TIGHT OUTLET SIDEPRESSURE TIGHT OUTLET SIDE |
| Thread Quantity Per Inch | 27 SECOND END27 SECOND END |
| Maximum Operating Temp | 260.0 FAHRENHEIT SINGLE RESPONSE260.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Operating Pressure | 140.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Series Designator | ANPT SECOND END |
| Valve Discharge Flow Rate | 100.0 LITERS PER MINUTE100.0 LITERS PER MINUTE |
| Material | ALUMINUM ALLOY OVERALL |
| Test Data Document | 81349-MIL-V-9050 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Disk Loading Method | SPRINGSPRING |
| Nominal Pipe Size Accommodated | 0.125 INCHES SECOND END0.125 INCHES SECOND END IN |
| Nominal Thread Size | 0.125 INCHES SECOND END0.125 INCHES SECOND END IN |
| Media for Which Designed | OXYGEN, LIQUID SECOND RESPONSEOXYGEN, GASEOUS FIRST RESPONSE |
| Thread Direction | RIGHT-HAND SECOND ENDRIGHT-HAND SECOND END |
| Connection Style | PLAIN (PIPE) SECOND ENDPLAIN (PIPE) SECOND END |
| Flow Control Device | POPPETPOPPET |
| Style Designator | ANGLE |
| Thread Series Designator | ANPT SECOND ENDANPT FIRST END |
| Nondefinitive Spec/std Data | 5 TYPE |
| Connection Type | THREADED INTERNAL PIPE FIRST ENDTHREADED INTERNAL PIPE FIRST END |
| Thread Quantity Per Inch | 27 FIRST END27 FIRST END |
| Nominal Pipe Size Accommodated | 0.125 INCHES FIRST END0.125 INCHES FIRST END IN |
| Criticality Code Justification | CQGM |
| Media for Which Designed | OXYGEN, LIQUID SECOND RESPONSE |
| Connection Type | THREADED EXTERNAL PIPE SECOND ENDTHREADED EXTERNAL PIPE SECOND END |
| Valve Operation Method | AUTOMATICAUTOMATIC |
| Thread Direction | RIGHT-HAND FIRST ENDRIGHT-HAND FIRST END |
| Material Document and Classification | MIL-V-9050 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Connection Style | PLAIN,OPTIONAL END(PIPE) FIRST ENDPLAIN,OPTIONAL END(PIPE) FIRST END |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 8661132 | Laser Technology Inc (USA) |
| 21247-12 | Mission Systems Orchard Park Inc (USA) |
| 20C0005-50 | Essex Industries Inc Div Manufacturing Division (USA) |
| 20C0005-50 | Essex Industries, Inc. Dba Essex Industries (USA) |
| 20C-0050-5 | Essex Industries, Inc. Dba Essex Industries (USA) |
| 21247-12 | Ingersoll-Rand Company Dba Ingersoll-Rand (USA) |
| M9050-5 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 10525-3 | American Safety Flight Systems Inc (USA) |
| M9050-5 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-V-9050 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-PRF-9050 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 4820-00-494-0755 is a Valve,safety Relief, manufactured by Laser Technology Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-494-0755 has 11 cross-referenced part numbers: 8661132 (Laser Technology Inc), 21247-12 (Mission Systems Orchard Park Inc), 20C0005-50 (Essex Industries Inc Div Manufacturing Division), 20C0005-50 (Essex Industries, Inc. Dba Essex Industries), 20C-0050-5 (Essex Industries, Inc. Dba Essex Industries) and 6 more.
There are 7 known substitutes for 4820-00-494-0755: 4820-00-019-9611, 4820-00-019-9612, 5307-00-430-0179 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 8661132: Nominal Thread Size: 0.125 INCHES FIRST END0.125 INCHES FIRST END IN; Features Provided: PRESSURE TIGHT OUTLET SIDEPRESSURE TIGHT OUTLET SIDE; Thread Quantity Per Inch: 27 SECOND END27 SECOND END; Maximum Operating Temp: 260.0 FAHRENHEIT SINGLE RESPONSE260.0 FAHRENHEIT SINGLE RESPONSE DEGF. 29 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-494-0755 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.