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PartsTable / COMPONENT / 1601-001 .25IN
1601-001 .25IN ✓ 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 1601-001 .25IN is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-189-8519, 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
1601-001 .25IN
NSN: 4820-01-189-8519
FSC: 4820
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
Part Number1601-001 .25IN
NSN4820-01-189-8519
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1601-001 .25IN · 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
•
MEDIA FOR WHICH DESIGNED: WATER, SALT THIRD RESPONSE
•
MAXIMUM OPERATING TEMP: 150.0 FAHRENHEIT FIRST RESPONSE DEGF
•
BONNET TYPE: INSIDE SCREW
•
BONNET ATTACHMENT METHOD: UNION
•
MATERIAL: NICKEL ALLOY SEAT
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
MEDIA FOR WHICH DESIGNEDWATER, SALT THIRD RESPONSE
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT FIRST RESPONSE DEGF
MAXIMUM OPERATING TEMP425.0 FAHRENHEIT THIRD RESPONSE DEGF
BONNET TYPEINSIDE SCREW
BONNET ATTACHMENT METHODUNION
MATERIALNICKEL ALLOY SEAT
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES ALL ENDS IN
MEDIA FOR WHICH DESIGNEDSTEAM SECOND RESPONSE
CONNECTION STYLESOCKET WITH BRAZING RING ALL ENDS
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SECOND RESPONSE DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
N90H319Interchangeable
interchangeable cross-reference
interchangeable
4871Interchangeable
interchangeable cross-reference
interchangeable
4871-0101Interchangeable
interchangeable cross-reference
interchangeable
1601-001Interchangeable
interchangeable cross-reference
interchangeable
050933Interchangeable
interchangeable cross-reference
interchangeable
803-4384536-55AXAFInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1601-001 .25IN?
1601-001 .25IN is a 1601-001 .25IN.
What parts can replace 1601-001 .25IN?
There are 14 known substitutes for 1601-001 .25IN: N90H319, 4871, 4871-0101 and 11 more. Substitute compatibility should be verified for your specific system.
Is 1601-001 .25IN still available?
1601-001 .25IN is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026