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20147-F — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

20147-F: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, flange_diameter: 6.125 INCHES NOMINAL IN, style_designator: THREADED FLANGED, nominal_thread_size: 5.750 INCHES SINGLE THREADED PORTION IN, under_flange_height: 1.125 INCHES NOMINAL IN, body_inside_diameter: 5.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-303-9249, 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
20147-F
NSN: 4820-01-303-9249
FSC: 4820 — Valves, Nonpowered
CAGE: 04537 — ATWOOD & MORRILL CO., INC. DBA WEIR VALVES AND CONTROLS USA (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
flange_diameter6.125 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
nominal_thread_size5.750 INCHES SINGLE THREADED PORTION IN
under_flange_height1.125 INCHES NOMINAL IN
body_inside_diameter5.000 INCHES NOMINAL IN
seating_surface_shapeFLAT
thread_quantity_per_inch12 SINGLE THREADED PORTION
thread_series_designatorUN SINGLE THREADED PORTION
flange_seat_to_disk_end_height0.312 INCHES NOMINAL IN
NSN4820-01-303-9249
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20147-F · 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 SEAT TO DISK END HEIGHT: 0.312 INCHES NOMINAL IN
•
FLANGE DIAMETER: 6.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: THREADED FLANGED
•
BODY INSIDE DIAMETER: 5.000 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 5.750 INCHES SINGLE THREADED PORTION IN
•
UNDER FLANGE HEIGHT: 1.125 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 12 SINGLE THREADED PORTION
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.312 INCHES NOMINAL IN
FLANGE DIAMETER6.125 INCHES NOMINAL IN
STYLE DESIGNATORTHREADED FLANGED
BODY INSIDE DIAMETER5.000 INCHES NOMINAL IN
NOMINAL THREAD SIZE5.750 INCHES SINGLE THREADED PORTION IN
UNDER FLANGE HEIGHT1.125 INCHES NOMINAL IN
THREAD QUANTITY PER INCH12 SINGLE THREADED PORTION
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
SEATING SURFACE SHAPEFLAT
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 1
20147F7X8Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20147-F?
20147-F is a SEAT,VALVE.
What parts can replace 20147-F?
There is 1 known substitute for 20147-F: 20147F7X8. Substitute compatibility should be verified for your specific system.
What is the NSN for 20147-F?
20147-F is cataloged in the U.S. Government catalog under NSN 4820-01-303-9249. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.