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PartsTable / COMPONENT / 81-01 SWS 3/8
81-01 SWS 3/8 ✓ 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 81-01 SWS 3/8 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 4820-01-425-8216, 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
81-01 SWS 3/8
NSN: 4820-01-425-8216
FSC: 4820
CAGE: 86184 — GRISWOLD INDUSTRIES DBA CLA-VAL CO (USA)
SPECIFICATIONS
Part Number81-01 SWS 3/8
NSN4820-01-425-8216
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 81-01 SWS 3/8 · 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
•
CONNECTION STYLE: PLAIN, OPTIONAL END (PIPE) ALL ENDS
•
DISK LOADING METHOD: SPRING
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
MATERIAL: COPPER ALLOY BODY
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
OPERATING PRESSURE: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MEDIA FOR WHICH DESIGNED: WATER, SALT SINGLE RESPONSE
•
MOUNTING POSITION: HORIZONTAL OR VERTICAL
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) ALL ENDS
DISK LOADING METHODSPRING
THREAD DIRECTIONRIGHT-HAND ALL ENDS
MATERIALCOPPER ALLOY BODY
THREAD SERIES DESIGNATORNPT ALL ENDS
OPERATING PRESSURE250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MEDIA FOR WHICH DESIGNEDWATER, SALT SINGLE RESPONSE
MOUNTING POSITIONHORIZONTAL OR VERTICAL
END ITEM IDENTIFICATIONSTRATEGIC SEALIFT CONVERSION SHIPS CLASS
STYLE DESIGNATORSTRAIGHT THRU
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
42570Interchangeable
interchangeable cross-reference
interchangeable
1118368Interchangeable
interchangeable cross-reference
interchangeable
32018-008-CKInterchangeable
interchangeable cross-reference
interchangeable
501-7368091 ITEMS NO 35 & 55Interchangeable
interchangeable cross-reference
interchangeable
01-0296 ITEM NO 59Interchangeable
interchangeable cross-reference
interchangeable
02-231-002Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81-01 SWS 3/8?
81-01 SWS 3/8 is a 81-01 SWS 3/8.
What parts can replace 81-01 SWS 3/8?
There are 8 known substitutes for 81-01 SWS 3/8: 42570, 1118368, 32018-008-CK and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 81-01 SWS 3/8?
81-01 SWS 3/8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-425-8216. 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