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PartsTable / COMPONENT / 1861 SWE 1/2INCH
1861 SWE 1/2INCH ✓ 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 1861 SWE 1/2INCH is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-443-5163, 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
1861 SWE 1/2INCH
NSN: 4820-01-443-5163
FSC: 4820
CAGE: 48422 — WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION (USA)
SPECIFICATIONS
Part Number1861 SWE 1/2INCH
NSN4820-01-443-5163
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1861 SWE 1/2INCH · 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
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.500 INCHES ALL ENDS IN
•
OPERATING PRESSURE: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
•
MATERIAL: STEEL CORROSION RESISTING BODY
•
STYLE DESIGNATOR: STRAIGHT THRU
•
MEDIA FOR WHICH DESIGNED: STEAM FIRST RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES ALL ENDS IN
OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
MATERIALSTEEL CORROSION RESISTING BODY
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
STYLE DESIGNATORSTRAIGHT THRU
MEDIA FOR WHICH DESIGNEDSTEAM FIRST RESPONSE
SPECIAL FEATURESSOCKET WELD END CONNECTIONS,2
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE PACKING
FURNISHED ITEMS AND QUANTITY1 HANDWHEEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
025441-0034Interchangeable
interchangeable cross-reference
interchangeable
227-1101P3Interchangeable
interchangeable cross-reference
interchangeable
X1785BInterchangeable
interchangeable cross-reference
interchangeable
6350-2Interchangeable
interchangeable cross-reference
interchangeable
51EInterchangeable
interchangeable cross-reference
interchangeable
LH6311 PIECE 3.3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1861 SWE 1/2INCH?
1861 SWE 1/2INCH is a 1861 SWE 1/2INCH.
What parts can replace 1861 SWE 1/2INCH?
There are 7 known substitutes for 1861 SWE 1/2INCH: 025441-0034, 227-1101P3, X1785B and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1861 SWE 1/2INCH?
1861 SWE 1/2INCH is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-443-5163. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026