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Technical Data Sheet
PartsTable / COMPONENT / S-235 SZ 3/4 IN
S-235 SZ 3/4 IN ✓ 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 S-235 SZ 3/4 IN is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-855-4561, 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
S-235 SZ 3/4 IN
NSN: 4820-00-855-4561
FSC: 4820
CAGE: 12168 — NIBCO INC (USA)
SPECIFICATIONS
Part NumberS-235 SZ 3/4 IN
NSN4820-00-855-4561
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: S-235 SZ 3/4 IN · 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
•
MATERIAL: COPPER ALLOY 836 BODY
•
MAXIMUM OPERATING TEMP: 406.0 FAHRENHEIT FIRST RESPONSE DEGF
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,ALLOY B5 FED SPEC SINGLE MATERIAL RESPONSE BODY
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE ALL ENDS
•
CONNECTION STYLE: SOCKET (TUBE) ALL ENDS
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY 836 BODY
MAXIMUM OPERATING TEMP406.0 FAHRENHEIT FIRST RESPONSE DEGF
MATERIALCOPPER ALLOY 836 SEAT
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SECOND RESPONSE DEGF
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY B5 FED SPEC SINGLE MATERIAL RESPONSE BODY
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDS
CONNECTION STYLESOCKET (TUBE) ALL ENDS
VALVE OPERATION METHODMANUAL
FEATURES PROVIDEDBONNET PACKING
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES ALL ENDS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
N1813Interchangeable
interchangeable cross-reference
interchangeable
1013Interchangeable
interchangeable cross-reference
interchangeable
A-A-52491Interchangeable
interchangeable cross-reference
interchangeable
S-2-3-5Interchangeable
interchangeable cross-reference
interchangeable
A-A-3139Interchangeable
interchangeable cross-reference
interchangeable
S-2.3-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S-235 SZ 3/4 IN?
S-235 SZ 3/4 IN is a S-235 SZ 3/4 IN.
What parts can replace S-235 SZ 3/4 IN?
There are 8 known substitutes for S-235 SZ 3/4 IN: N1813, 1013, A-A-52491 and 5 more. Substitute compatibility should be verified for your specific system.
Is S-235 SZ 3/4 IN still available?
S-235 SZ 3/4 IN 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