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Technical Data Sheet
PartsTable / COMPONENT / 11779 PT NO. 12
11779 PT NO. 12 ✓ 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 11779 PT NO. 12 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 4820-00-976-0348, 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
11779 PT NO. 12
NSN: 4820-00-976-0348
FSC: 4820
CAGE: 08441 — SPX CORPORATION DBA DIELECTRIC COMMUNICATIONS DIV SPX COMMUNICATION TECHNOLOGIES (USA)
SPECIFICATIONS
Part Number11779 PT NO. 12
NSN4820-00-976-0348
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 11779 PT NO. 12 · 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
•
DISK LOADING METHOD: SPRING
•
CONNECTION STYLE: PLAIN (PIPE) FIRST END
•
MEDIA FOR WHICH DESIGNED: AMMONIA, LIQUID THIRD RESPONSE
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
DISK LOADING METHODSPRING
CONNECTION STYLEPLAIN (PIPE) FIRST END
MEDIA FOR WHICH DESIGNEDAMMONIA, LIQUID THIRD RESPONSE
MEDIA FOR WHICH DESIGNEDAIR SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDACETYLENE FIRST RESPONSE
THREAD DIRECTIONRIGHT-HAND FIRST END
MEDIA FOR WHICH DESIGNEDGAS, INERT FOURTH RESPONSE
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
MEDIA FOR WHICH DESIGNEDHYDROGEN FIFTH RESPONSE
STYLE DESIGNATORSTRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
11779Interchangeable
interchangeable cross-reference
interchangeable
114D179-14Interchangeable
interchangeable cross-reference
interchangeable
1503-16Interchangeable
interchangeable cross-reference
interchangeable
J517Interchangeable
interchangeable cross-reference
interchangeable
11779-24Interchangeable
interchangeable cross-reference
interchangeable
559B-6M-35Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11779 PT NO. 12?
11779 PT NO. 12 is a 11779 PT NO. 12.
What parts can replace 11779 PT NO. 12?
There are 6 known substitutes for 11779 PT NO. 12: 11779, 114D179-14, 1503-16 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11779 PT NO. 12?
11779 PT NO. 12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-976-0348. 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