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54119 — SEAT,VALVE

✓ Government record, cited
Bestway · GATE VALVE
PRODUCT OVERVIEW

54119: SEAT,VALVE.

- Three 3 interconnecting nozzles - Sturdy pre-tested vinyl - 3 equal rings - Extra wide side walls - 4 cup holders - Heavy-duty repair patch - Designed water capacity: 1,030 L (272 gal.) - Releases pool water with the easy-to-use drain valve! - Contents:One pool, heavy-duty repair patch This part is cataloged in the U.S. Government catalog under NSN 4820-00-919-8388, 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
54119
NSN: 4820-00-919-8388
FSC: 4820 — Valves, Nonpowered
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_class2A SINGLE THREADED PORTION A
thread_length0.500 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter3.130 INCHES NOMINAL IN
special_featuresTWO INTERNAL WRENCHING LUGS BELOW SEATING SURFACE
style_designatorTHREADED FLANGED
seat_angle_in_deg96.000 NOMINAL
nominal_thread_size2.750 INCHES SINGLE THREADED PORTION IN
under_flange_height0.550 INCHES NOMINAL IN
body_inside_diameter2.128 INCHES NOMINAL IN
seating_surface_shapeANGULAR
thread_quantity_per_inch14 SINGLE THREADED PORTION
NSN4820-00-919-8388
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 54119 · Bestway ⚠ 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: 0.280 INCHES NOMINAL IN
•
FLANGE DIAMETER: 3.130 INCHES NOMINAL IN
•
THREAD LENGTH: 0.500 INCHES NOMINAL SINGLE THREADED PORTION IN
•
STYLE DESIGNATOR: THREADED FLANGED
•
BODY INSIDE DIAMETER: 2.128 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 2.750 INCHES SINGLE THREADED PORTION IN
•
UNDER FLANGE HEIGHT: 0.550 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.280 INCHES NOMINAL IN
FLANGE DIAMETER3.130 INCHES NOMINAL IN
THREAD LENGTH0.500 INCHES NOMINAL SINGLE THREADED PORTION IN
STYLE DESIGNATORTHREADED FLANGED
BODY INSIDE DIAMETER2.128 INCHES NOMINAL IN
NOMINAL THREAD SIZE2.750 INCHES SINGLE THREADED PORTION IN
SPECIAL FEATURESTWO INTERNAL WRENCHING LUGS BELOW SEATING SURFACE
UNDER FLANGE HEIGHT0.550 INCHES NOMINAL IN
THREAD CLASS2A SINGLE THREADED PORTION A
THREAD QUANTITY PER INCH14 SINGLE THREADED PORTION
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

No substitute or cross-reference records for this part.

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 54119?
54119 is a SEAT,VALVE manufactured by Bestway.
What is the NSN for 54119?
54119 is cataloged in the U.S. Government catalog under NSN 4820-00-919-8388. 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.