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Technical Data Sheet
PartsTable / COMPONENT / 431-1/2
431-1/2 ✓ 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 431-1/2 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-061-5652, 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
431-1/2
NSN: 4820-00-061-5652
FSC: 4820
CAGE: 14959 — CRANE CO DIV VALVE DIV (USA)
SPECIFICATIONS
Part Number431-1/2
NSN4820-00-061-5652
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 431-1/2 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 HANDWHEEL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE DISK
•
MATERIAL: COPPER ALLOY 694 STEM
•
VALVE OPERATION METHOD: MANUAL
•
INLET RELATIONSHIP WITH OUTLET: IDENTICAL
TECHNICAL CHARACTERISTICS (FLIS)
FURNISHED ITEMS AND QUANTITY1 HANDWHEEL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE DISK
MATERIALCOPPER ALLOY 694 STEM
END ITEM IDENTIFICATIONLOGISTICS SUPPORT VESSEL
VALVE OPERATION METHODMANUAL
MATERIALCOPPER ALLOY SEAT
INLET RELATIONSHIP WITH OUTLETIDENTICAL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-62 ASSN STD SINGLE MATERIAL RESPONSE BODY
STEM TYPERISING
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B-371 ALLOY 694 ASSN STD SINGLE MATERIAL RESPONSE STEM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
B1008Interchangeable
interchangeable cross-reference
interchangeable
43112Interchangeable
interchangeable cross-reference
interchangeable
84093Interchangeable
interchangeable cross-reference
interchangeable
SP54171 1-2Interchangeable
interchangeable cross-reference
interchangeable
2714Interchangeable
interchangeable cross-reference
interchangeable
G17B26849-50Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 431-1/2?
431-1/2 is a 431-1/2.
What parts can replace 431-1/2?
There are 31 known substitutes for 431-1/2: B1008, 43112, 84093 and 28 more. Substitute compatibility should be verified for your specific system.
Is 431-1/2 still available?
431-1/2 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