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PartsTable / COMPONENT / SD-121-3/4IN160T186PSI
SD-121-3/4IN160T186PSI ✓ 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 SD-121-3/4IN160T186PSI 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 4820-01-198-8610, 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
SD-121-3/4IN160T186PSI
NSN: 4820-01-198-8610
FSC: 4820
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
Part NumberSD-121-3/4IN160T186PSI
NSN4820-01-198-8610
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: SD-121-3/4IN160T186PSI · 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
•
BOLT CIRCLE NOMINAL DIAMETER: 6.625 INCHES FIRST END IN
•
ADJUSTABLE PRESSURE RANGE: +160.0 TO 186.0 POUNDS PER SQUARE INCH LBS
•
BOLT HOLE NOMINAL DIAMETER: 0.750 INCHES SECOND END IN
•
NOMINAL OUTSIDE DIAMETER: 8.250 INCHES FIRST END IN
•
FLANGE SHAPE: ROUND WITH HOLES ALL ENDS
•
VALVE SIZE: 3.000 INCHES IN
•
RAISED FACE NOMINAL HEIGHT: 0.062 INCHES SECOND END IN
•
FLANGE FACE DESIGN: RAISED STRAIGHT ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
BOLT CIRCLE NOMINAL DIAMETER6.625 INCHES FIRST END IN
ADJUSTABLE PRESSURE RANGE+160.0 TO 186.0 POUNDS PER SQUARE INCH LBS
BOLT HOLE NOMINAL DIAMETER0.750 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER8.250 INCHES FIRST END IN
FLANGE SHAPEROUND WITH HOLES ALL ENDS
VALVE SIZE3.000 INCHES IN
RAISED FACE NOMINAL HEIGHT0.062 INCHES SECOND END IN
FLANGE FACE DESIGNRAISED STRAIGHT ALL ENDS
BOLT HOLE NOMINAL DIAMETER0.875 INCHES FIRST END IN
STYLE DESIGNATORANGLE FLANGED ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
B24-1Interchangeable
interchangeable cross-reference
interchangeable
SD12-1Interchangeable
interchangeable cross-reference
interchangeable
SD-121 PIECE 28 MODEL D-20KInterchangeable
interchangeable cross-reference
interchangeable
SD-121 PIECE 25 MODEL D-20KInterchangeable
interchangeable cross-reference
interchangeable
D20K3X4IN160T186PSIInterchangeable
Same NIIN cross-reference
interchangeable
SD121-3X4IN160T186PSIInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SD-121-3/4IN160T186PSI?
SD-121-3/4IN160T186PSI is a SD-121-3/4IN160T186PSI.
What parts can replace SD-121-3/4IN160T186PSI?
There are 6 known substitutes for SD-121-3/4IN160T186PSI: B24-1, SD12-1, SD-121 PIECE 28 MODEL D-20K and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SD-121-3/4IN160T186PSI?
SD-121-3/4IN160T186PSI is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-198-8610. 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