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PartsTable / COMPONENT / 320-1/4
320-1/4 ✓ 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 320-1/4 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 4820-01-521-9523, 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
320-1/4
NSN: 4820-01-521-9523
FSC: 4820
CAGE: 5N871 — SHAMROCK PLUMBING SALES CO (USA)
SPECIFICATIONS
Part Number320-1/4
NSN4820-01-521-9523
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 320-1/4 · 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: STEEL COMP 316 BODY
•
VALVE OPERATION METHOD: MANUAL
•
STYLE DESIGNATOR: STRAIGHT THRU
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 316 BODY
PART NAME ASSIGNED BY CONTROLLING AGENCY1/4 INCH 2-PIECE, FULL PORT, THREADED ENDS, 1000 WOG, CONFORMS TO WW-V-35, TYPE II, CLASS C & D, STYLE 1 & 3 IN
VALVE OPERATION METHODMANUAL
MATERIALSTEEL COMP 316 FLOW CONTROL DEVICE
STYLE DESIGNATORSTRAIGHT THRU
MATERIALSTEEL COMP 316 STEM
MATERIALPLASTIC POLYTRIFLUOROETHYLENE SEAT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
9320-14Interchangeable
interchangeable cross-reference
interchangeable
72202MInterchangeable
interchangeable cross-reference
interchangeable
632496-8Interchangeable
interchangeable cross-reference
interchangeable
T0477Interchangeable
interchangeable cross-reference
interchangeable
5192912Interchangeable
interchangeable cross-reference
interchangeable
32014Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 320-1/4?
320-1/4 is a 320-1/4.
What parts can replace 320-1/4?
There are 13 known substitutes for 320-1/4: 9320-14, 72202M, 632496-8 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 320-1/4?
320-1/4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-521-9523. 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