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Technical Data Sheet
PartsTable / COMPONENT / 99 1 1/4
99 1 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 99 1 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 4820-01-379-2116, 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
99 1 1/4
NSN: 4820-01-379-2116
FSC: 4820
CAGE: 14652 — UNITED BRASS WORKS, INC. DBA UNITED BRASS WORKS (USA)
SPECIFICATIONS
Part Number99 1 1/4
NSN4820-01-379-2116
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 99 1 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
•
VALVE OPERATION METHOD: AUTOMATIC
•
FLOW CONTROL DEVICE: DISK
•
MOUNTING POSITION: VERTICAL
•
CONNECTION STYLE: PLAIN, OPTIONAL END (PIPE) ALL ENDS
•
MATERIAL: COPPER ALLOY BODY
•
NOMINAL THREAD SIZE: 1.250 INCHES ALL ENDS IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESSWING CHECK TYPE.
VALVE OPERATION METHODAUTOMATIC
FLOW CONTROL DEVICEDISK
MOUNTING POSITIONVERTICAL
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) ALL ENDS
MATERIALCOPPER ALLOY BODY
NOMINAL THREAD SIZE1.250 INCHES ALL ENDS IN
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
349687Interchangeable
interchangeable cross-reference
interchangeable
63A133593P13Interchangeable
interchangeable cross-reference
interchangeable
LS840Interchangeable
interchangeable cross-reference
interchangeable
257501Interchangeable
interchangeable cross-reference
interchangeable
DM15D200JInterchangeable
interchangeable cross-reference
interchangeable
99114Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 99 1 1/4?
99 1 1/4 is a 99 1 1/4.
What parts can replace 99 1 1/4?
There are 6 known substitutes for 99 1 1/4: 349687, 63A133593P13, LS840 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 99 1 1/4?
99 1 1/4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-379-2116. 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