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Technical Data Sheet
PartsTable / COMPONENT / 30-3-4-1 11/2
30-3-4-1 11/2 ✓ 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 30-3-4-1 11/2 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 4820-00-287-3585, 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
30-3-4-1 11/2
NSN: 4820-00-287-3585
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
Part Number30-3-4-1 11/2
NSN4820-00-287-3585
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 30-3-4-1 11/2 · 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
•
FIRST END STYLE DESIGNATOR: OPTIONAL END
•
FURNISHED ITEMS: INTERNAL PILOT VALVE
•
MEDIA FOR WHICH DESIGNED: STEAM
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66 FED SPEC SINGLE MATERIAL RESPONSE OR AISI 410/SAE 51410 ASSN STD SINGLE MATERIAL RESPONSE SEAT
•
FLOW CONTROL DEVICE: DISK, BEVEL SEAT, TOP GUIDED AND DISK, BEVEL SEAT, BOTTOM GUIDED
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
MAXIMUM INLET PRESSURE RATING: ERR-060
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END STYLE DESIGNATOROPTIONAL END
FURNISHED ITEMSINTERNAL PILOT VALVE
MEDIA FOR WHICH DESIGNEDSTEAM
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66 FED SPEC SINGLE MATERIAL RESPONSE OR AISI 410/SAE 51410 ASSN STD SINGLE MATERIAL RESPONSE SEAT
FLOW CONTROL DEVICEDISK, BEVEL SEAT, TOP GUIDED AND DISK, BEVEL SEAT, BOTTOM GUIDED
FIRST END THREAD DIRECTIONRIGHT-HAND
MAXIMUM INLET PRESSURE RATINGERR-060
REGULATION TYPEMANUAL SINGLE STAGE
FILTERNOT INCLUDED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
303-41Interchangeable
interchangeable cross-reference
interchangeable
11794NInterchangeable
interchangeable cross-reference
interchangeable
L223FInterchangeable
interchangeable cross-reference
interchangeable
L-3 300PSIInterchangeable
interchangeable cross-reference
interchangeable
2194PNInterchangeable
interchangeable cross-reference
interchangeable
147980Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 30-3-4-1 11/2?
30-3-4-1 11/2 is a 30-3-4-1 11/2.
What parts can replace 30-3-4-1 11/2?
There are 13 known substitutes for 30-3-4-1 11/2: 303-41, 11794N, L223F and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 30-3-4-1 11/2?
30-3-4-1 11/2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-287-3585. 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