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PartsTable / COMPONENT / 13999 03011
13999 03011 ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 0.250 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 1.253 INCHES NOMINAL IN, style_designator: THREADED FLANGED, nominal_thread_size: 1.000 INCHES SINGLE THREADED PORTION IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-119-0584, 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
13999 03011
NSN: 4820-01-119-0584
FSC: 4820
CAGE: 63220 — FLOWSERVE INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class2A SINGLE THREADED PORTION A
thread_length0.250 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter1.253 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
nominal_thread_size1.000 INCHES SINGLE THREADED PORTION IN
under_flange_height0.382 INCHES NOMINAL IN
body_inside_diameter0.690 INCHES NOMINAL IN
seating_surface_shapeFLAT
thread_quantity_per_inch16 SINGLE THREADED PORTION
thread_series_designatorUN SINGLE THREADED PORTION
flange_seat_to_disk_end_height0.182 INCHES NOMINAL IN
NSN4820-01-119-0584
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 13999 03011 · 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
•
FLANGE DIAMETER: 1.253 INCHES NOMINAL IN
•
SEATING SURFACE SHAPE: FLAT
•
THREAD QUANTITY PER INCH: 16 SINGLE THREADED PORTION
•
THREAD SERIES DESIGNATOR: UN SINGLE THREADED PORTION
•
STYLE DESIGNATOR: THREADED FLANGED
•
MATERIAL: STEEL OVERALL
•
NOMINAL THREAD SIZE: 1.000 INCHES SINGLE THREADED PORTION IN
•
UNDER FLANGE HEIGHT: 0.382 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE DIAMETER1.253 INCHES NOMINAL IN
SEATING SURFACE SHAPEFLAT
THREAD QUANTITY PER INCH16 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
STYLE DESIGNATORTHREADED FLANGED
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE1.000 INCHES SINGLE THREADED PORTION IN
UNDER FLANGE HEIGHT0.382 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.690 INCHES NOMINAL IN
FLANGE SEAT TO DISK END HEIGHT0.182 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
SW-4835Interchangeable
interchangeable cross-reference
interchangeable
B-51063 PART SW-4835Interchangeable
interchangeable cross-reference
interchangeable
F-47623Interchangeable
interchangeable cross-reference
interchangeable
B-51063 ITEM 16806Interchangeable
interchangeable cross-reference
interchangeable
16806Interchangeable
interchangeable cross-reference
interchangeable
B-51063Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 13999 03011?
13999 03011 is a SEAT,VALVE.
What parts can replace 13999 03011?
There are 8 known substitutes for 13999 03011: SW-4835, B-51063 PART SW-4835, F-47623 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 13999 03011?
13999 03011 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-119-0584. 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