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Technical Data Sheet
PartsTable / COMPONENT / 1/CL. 300/SIZE 1/4 IN.
1/CL. 300/SIZE 1/4 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 1/CL. 300/SIZE 1/4 IN. is a the manufacturer industrial component.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-541-0375, 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
1/CL. 300/SIZE 1/4 IN.
NSN: 4820-00-541-0375
FSC: 4820
CAGE: 59646 — MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS INDUSTRY INC (USA)
SPECIFICATIONS
Part Number1/CL. 300/SIZE 1/4 IN.
NSN4820-00-541-0375
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1/CL. 300/SIZE 1/4 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
•
FLOW CONTROL DEVICE: DISK
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
•
CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) ALL ENDS
•
MATERIAL: COPPER ALLOY 922 BODY
•
BONNET ATTACHMENT METHOD: UNION
•
VALVE OPERATION METHOD: MANUAL
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
FLOW CONTROL DEVICEDISK
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) ALL ENDS
MATERIALCOPPER ALLOY 922 BODY
BONNET ATTACHMENT METHODUNION
VALVE OPERATION METHODMANUAL
THREAD DIRECTIONRIGHT-HAND ALL ENDS
MATERIALSTEEL FLOW CONTROL DEVICE
RENEWABLE SEAT RING TYPETHREADED
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
214CInterchangeable
interchangeable cross-reference
interchangeable
MIL-V-1187Interchangeable
interchangeable cross-reference
interchangeable
YSR30S5103-855302PC45Interchangeable
interchangeable cross-reference
interchangeable
YSR30S5103-855302PC60Interchangeable
interchangeable cross-reference
interchangeable
YSR27S5103-706240PC60Interchangeable
interchangeable cross-reference
interchangeable
MSS SP-80Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1/CL. 300/SIZE 1/4 IN.?
1/CL. 300/SIZE 1/4 IN. is a 1/CL. 300/SIZE 1/4 IN..
What parts can replace 1/CL. 300/SIZE 1/4 IN.?
There are 12 known substitutes for 1/CL. 300/SIZE 1/4 IN.: 214C, MIL-V-1187, YSR30S5103-855302PC45 and 9 more. Substitute compatibility should be verified for your specific system.
Is 1/CL. 300/SIZE 1/4 IN. still available?
1/CL. 300/SIZE 1/4 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