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4820-00-138-3750
Vacuum Breaking Valve
4820001383750 001383750 28544-1 1-2
An item designed to automatically relieve vacuum, by the intake of air, when the internal pressure falls below atmospheric pressure. See also VALVE, VACUUM REGULATING. View more Vacuum Breaking Valve
November 2023
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Restrictions 4820-00-138-3750
4820-00-138-3750 is a Vacuum Breaking Valve that does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. This item is considered a low risk when released from the control of the Department of Defense. The item may still be subject to the requirements of the Export Administration Regulations (EAR) and the Code of Federal Regulations (CFR). This item is not suspected to be hazardous. The precious metals content of this item is unknown.
End Users 4820-00-138-3750
- NASA (G070)
- Effective Date:
- 1 Apr 1991
Approved Sources 4820-00-138-3750
- Part Number
- Manufacturer
- Status
- 28544-1 1-2
- Manufacturer
- 51729 - Dresser, Inc. (Active)
- Primary Buy
- Primary Buy
Datasheet 4820-00-138-3750
- Characteristic
- Specifications
- Body Style [AAQL]
- Specifications
- Single Connection, Straight Flow
- Body Material [AAFZ]
- Bronze
- Seat Material [ACSH]
- Bronze
- Flow Control Device [ADQU]
- Diaphragm
- Flow Control Device Material [ADQV]
- Any Acceptable
- Stem Material [ABEP]
- Bronze
- End Connection Quantity [ADQZ]
- 1
- First End Connection Type [ACKM]
- Threaded External Pipe
- First End Style Designator [ACKN]
- Plain
- First End Nominal Pipe Size Accommodated [ACLG]
- 1.500 Inches
- First End Thread Direction [ACLL]
- Right-Hand
- Temp Adjustability [AEVX]
- Not Adjustable
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Freight Information 4820-00-138-3750
4820-00-138-3750 has freight characteristics managed by Panama.. 4820-00-138-3750 has a variance between NMFC and UFC when transported by rail and the description should be consulted.