PartsTable
Technical Data Sheet
8-250-590 ✓ Verified by PartsTable
· GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

VALVE,REGULATING,FLUID PRESSURE. Key specifications include filter: INCLUDED, material: STEEL STEM, body_style: STRAIGHT THRU, regulation_type: 1ST STAGE AUTOMATIC, 2ND STAGE MANUAL, valve_stem_design: SINGLE SEAT, flow_control_device: STEM AND INTEGRAL DISK. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-106-4954, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
8-250-590
NSN: 4820-00-106-4954
FSC: 4820
CAGE: 96355 — MATHESON CO DIV OF G D SEARLE MEDICAL PRODUCTS (USA)
SPECIFICATIONS
filterINCLUDED
materialSTEEL STEM
body_styleSTRAIGHT THRU
regulation_type1ST STAGE AUTOMATIC, 2ND STAGE MANUAL
valve_stem_designSINGLE SEAT
flow_control_deviceSTEM AND INTEGRAL DISK
valve_loading_methodSPRING
end_connection_quantity2
media_for_which_designedHELIUM
second_end_style_designatorPLAIN
second_end_relationship_with_first_endNOT IDENTICAL
thread_size_and_series/type_designator7/8-16 UN FIRST END
NSN4820-00-106-4954
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 8-250-590 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
VALVE LOADING METHOD: SPRING
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1/2-14 NPT SECOND END
FILTER: INCLUDED
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
BODY STYLE: STRAIGHT THRU
FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.625 INCHES NOMINAL IN
MATERIAL: STEEL STEM
TECHNICAL CHARACTERISTICS (FLIS)
VALVE LOADING METHODSPRING
THREAD SIZE AND SERIES/TYPE DESIGNATOR1/2-14 NPT SECOND END
THREAD SIZE AND SERIES/TYPE DESIGNATOR7/8-16 UN FIRST END
FILTERINCLUDED
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
BODY STYLESTRAIGHT THRU
FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED0.625 INCHES NOMINAL IN
MATERIALSTEEL STEM
END CONNECTION QUANTITY2
SECOND END STYLE DESIGNATORPLAIN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
1227-9590Interchangeable
interchangeable cross-reference
interchangeable
09590Interchangeable
interchangeable cross-reference
interchangeable
72P231600-1Interchangeable
interchangeable cross-reference
interchangeable
12420471Interchangeable
interchangeable cross-reference
interchangeable
12420471-002Interchangeable
interchangeable cross-reference
interchangeable
17591Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8-250-590?
8-250-590 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 8-250-590?
There are 7 known substitutes for 8-250-590: 1227-9590, 09590, 72P231600-1 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8-250-590?
8-250-590 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-106-4954. This indicates validated use in U.S. government and defense supply chains.
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