L81400-20FMK Check Valve
4820-01-059-1173
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Official Item Classification
- Name
- Check Valve
- Part Number
- L81400-20FMK
- (NSN) National Stock Number
- 4820-01-059-1173
- (FSG) Federal Supply Group
- 48 Valves
- (FSC) Federal Supply Classification
- 4820 Nonpowered Valves
- (INC) Item Name Code
- 05487
- (FIIG) Federal Item Identification Guide
- A530B0
- Date
- 04/06/1978 (48 years ago)
poppet flow control device, plain (tube) 1st end connection style, 400.0 fahrenheit single response maximum operating temp, spring disk loading method, 4 2nd end bolt hole quantity
Specs & Compatibility
poppet
spring
4 2nd end
400.0 fahrenheit single response
plain (tube) 1st end
2.188 inches 2nd end
2.188 inches 2nd end
automatic
rectangular with holes 2nd end
flange 2nd end
unthreaded external tube 1st end
horizontal
400.0 pounds per square inch single response
0.300 inches 2nd end
2.500 inches 2nd end
1.656 inches 2nd end
1.656 inches 1st end
plain 2nd end
1.520 inches 1st end
aluminum alloy 2024 flow control device
aluminum alloy 6061 body
rubber seat
mil-r-25897, type 1, class 1 mil spec single material response seat
qq-a-200/3, alloy 2024, t4 fed spec single material response flow control device
qq-a-225/8, alloy 6061, t651 fed spec single material response body
air 1st response
fuel/oil, hydrocarbon 2nd response
anodize
mil-a-8625 mil spec single treatment response
straight thru
Regulatory Compliance
Precious metal content is unknown
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
0005487
Related Hardware Products
| Part Number | Description |
|---|---|
| GV500TC20FMK | Check Valve |
| L81400-20FMK | Check Valve |