PartsTable
Technical Data Sheet
17254 ITEM 21 ✓ 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

The VALVE,REGULATING,TEMPERATURE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY SEAT, body_style: ANGLE, temp_rating: 120.0 FAHRENHEIT NOMINAL DEGF, temp_adjustability: NOT ADJUSTABLE, flow_control_device: DOUBLE SEATED, first_end_connection_type: THREADED INTERNAL PIPE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-336-6009, 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
17254 ITEM 21
NSN: 4820-01-336-6009
FSC: 4820
CAGE: 25511 — NORTHERN LINE MACHINE DIV OF COMMENCEMENT INTL CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY SEAT
body_styleANGLE
temp_rating120.0 FAHRENHEIT NOMINAL DEGF
temp_adjustabilityNOT ADJUSTABLE
flow_control_deviceDOUBLE SEATED
end_connection_quantity2
first_end_connection_typeTHREADED INTERNAL PIPE
first_end_style_designatorPLAIN
first_end_thread_directionRIGHT-HAND
second_end_relationship_with_first_endIDENTICAL
thread_size_and_series/type_designator1.000-11-1/2 NPT FIRST END
NSN4820-01-336-6009
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 17254 ITEM 21 · 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
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 1.000-11-1/2 NPT FIRST END
FLOW CONTROL DEVICE: DOUBLE SEATED
MATERIAL: IRON CAST BODY
FIRST END STYLE DESIGNATOR: PLAIN
BODY STYLE: ANGLE
FIRST END CONNECTION TYPE: THREADED INTERNAL PIPE
FIRST END THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
THREAD SIZE AND SERIES/TYPE DESIGNATOR1.000-11-1/2 NPT FIRST END
FLOW CONTROL DEVICEDOUBLE SEATED
MATERIALIRON CAST BODY
FIRST END STYLE DESIGNATORPLAIN
BODY STYLEANGLE
FIRST END CONNECTION TYPETHREADED INTERNAL PIPE
FIRST END THREAD DIRECTIONRIGHT-HAND
END CONNECTION QUANTITY2
MATERIALCOPPER ALLOY SEAT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
17254Interchangeable
interchangeable cross-reference
interchangeable
8331256Interchangeable
interchangeable cross-reference
interchangeable
145-0088Interchangeable
interchangeable cross-reference
interchangeable
497212Interchangeable
interchangeable cross-reference
interchangeable
672-0502-000Interchangeable
interchangeable cross-reference
interchangeable
DS-921808Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 17254 ITEM 21?
17254 ITEM 21 is a VALVE,REGULATING,TEMPERATURE.
What parts can replace 17254 ITEM 21?
There are 21 known substitutes for 17254 ITEM 21: 17254, 8331256, 145-0088 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 17254 ITEM 21?
17254 ITEM 21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-336-6009. This indicates validated use in U.S. government and defense supply chains.
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