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583440058 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

583440058: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 0.438 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 1.840 INCHES NOMINAL IN, style_designator: THREADED FLANGED, seat_angle_in_deg: 45.000 NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-623-8775, 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
583440058
NSN: 4820-00-623-8775
FSC: 4820 — Valves, Nonpowered
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
thread_class2A SINGLE THREADED PORTION A
thread_length0.438 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter1.840 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
seat_angle_in_deg45.000 NOMINAL
nominal_thread_size1.688 INCHES FIRST THREADED PORTION IN
under_flange_height0.438 INCHES NOMINAL IN
body_inside_diameter1.188 INCHES NOMINAL IN
seating_surface_shapeANGULAR
thread_quantity_per_inch16 SINGLE THREADED PORTION
thread_series_designatorUNS SINGLE THREADED PORTION
NSN4820-00-623-8775
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 583440058 · 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: 0.180 INCHES NOMINAL IN
•
FLANGE DIAMETER: 1.840 INCHES NOMINAL IN
•
THREAD LENGTH: 0.438 INCHES NOMINAL SINGLE THREADED PORTION IN
•
STYLE DESIGNATOR: THREADED FLANGED
•
BODY INSIDE DIAMETER: 1.188 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 1.688 INCHES FIRST THREADED PORTION IN
•
UNDER FLANGE HEIGHT: 0.438 INCHES NOMINAL IN
•
THREAD CLASS: 2A SINGLE THREADED PORTION A
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.180 INCHES NOMINAL IN
FLANGE DIAMETER1.840 INCHES NOMINAL IN
THREAD LENGTH0.438 INCHES NOMINAL SINGLE THREADED PORTION IN
STYLE DESIGNATORTHREADED FLANGED
BODY INSIDE DIAMETER1.188 INCHES NOMINAL IN
NOMINAL THREAD SIZE1.688 INCHES FIRST THREADED PORTION IN
UNDER FLANGE HEIGHT0.438 INCHES NOMINAL IN
THREAD CLASS2A SINGLE THREADED PORTION A
THREAD QUANTITY PER INCH16 SINGLE THREADED PORTION
MATERIALNICKEL ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
58344Reference document
Same NSN cross-reference
Reference document — Secondary reference
38765-00-58Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 583440058?
583440058 is a SEAT,VALVE.
What parts can replace 583440058?
There are 2 known substitutes for 583440058: 58344, 38765-00-58. Substitute compatibility should be verified for your specific system.
What is the NSN for 583440058?
583440058 is cataloged in the U.S. Government catalog under NSN 4820-00-623-8775. 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.