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1C2170-1 Check Valve

4820-00-930-5273

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Official Item Classification

Name
Check Valve
Part Number
1C2170-1
(NSN) National Stock Number
4820-00-930-5273
(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
06/03/1966 (60 years ago)

right-hand all ends thread direction, spring disk loading method, 275.0 fahrenheit single response maximum operating temp, poppet flow control device, 3a all ends thread class

Specs & Compatibility

Thread Class

3a all ends

Thread Direction

right-hand all ends

Flow Control Device

poppet

Disk Loading Method

spring

Maximum Operating Temp

275.0 fahrenheit single response

Connection Style

external seat for gasket seal (boss) 1st end

Connection Style

flared (tube) 2nd end

Valve Operation Method

automatic

Connection Type

threaded external boss 1st end

Connection Type

threaded external tube 2nd end

Maximum Operating Pressure

1500.0 pounds per square inch single response

Nominal Thread Size

0.438 inches all ends

Seat Angle

12.0 degrees 1st end

Seat Angle

37.0 degrees 2nd end

Special Features

0.250 in. tube size; centrally located hex feature, 0.688 in. width across flats, 0.220 in. thick

Media For Which Designed

fuel/oil, hydrocarbon single response

Style Designator

straight thru

Thread Series Designator

unf 2nd end

Thread Series Designator

unjf 1st end

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0005487

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Frequently Asked Questions

What is the FSCG of the NSN 4820-00-930-5273?
The FSCG of the NSN 4820-00-930-5273 is 4820
Does the NSN 4820-00-930-5273 have a Schedule B code assigned?
Yes, the Schedule B code is 8481301090
Does NSN 4820-00-930-5273 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 4820-00-930-5273 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-930-5273 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 4820-00-930-5273 was assigned to the Federal Catalog?
It was assigned 60 years ago, on Fri, Jun 3, 1966