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29857-00-58 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

29857-00-58: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thread_class: 3A SINGLE THREADED PORTION A, thread_length: 0.313 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 1.875 INCHES NOMINAL IN, style_designator: THREADED FLANGED, nominal_thread_size: 1.688 INCHES SINGLE THREADED PORTION IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-595-4562, 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
29857-00-58
NSN: 4820-00-595-4562
FSC: 4820 — Valves, Nonpowered
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thread_class3A SINGLE THREADED PORTION A
thread_length0.313 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter1.875 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
nominal_thread_size1.688 INCHES SINGLE THREADED PORTION IN
under_flange_height0.438 INCHES NOMINAL IN
body_inside_diameter1.188 INCHES NOMINAL IN
seating_surface_shapeFLAT
thread_series_designatorUNEF SINGLE THREADED PORTION
flange_seat_to_disk_end_height0.203 INCHES NOMINAL IN
NSN4820-00-595-4562
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 29857-00-58 · 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: 0.203 INCHES NOMINAL IN
•
FLANGE DIAMETER: 1.875 INCHES NOMINAL IN
•
THREAD LENGTH: 0.313 INCHES NOMINAL SINGLE THREADED PORTION IN
•
STYLE DESIGNATOR: THREADED FLANGED
•
BODY INSIDE DIAMETER: 1.188 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 1.688 INCHES SINGLE THREADED PORTION IN
•
UNDER FLANGE HEIGHT: 0.438 INCHES NOMINAL IN
•
THREAD CLASS: 3A SINGLE THREADED PORTION A
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.203 INCHES NOMINAL IN
FLANGE DIAMETER1.875 INCHES NOMINAL IN
THREAD LENGTH0.313 INCHES NOMINAL SINGLE THREADED PORTION IN
STYLE DESIGNATORTHREADED FLANGED
BODY INSIDE DIAMETER1.188 INCHES NOMINAL IN
NOMINAL THREAD SIZE1.688 INCHES SINGLE THREADED PORTION IN
UNDER FLANGE HEIGHT0.438 INCHES NOMINAL IN
THREAD CLASS3A SINGLE THREADED PORTION A
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD SERIES DESIGNATORUNEF SINGLE THREADED PORTION
SUBSTITUTES & CROSS-REFERENCES 2
23779NPC16PT29857-00-58Reference document
Same NSN cross-reference
Reference document — Secondary reference
38765-00-58Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 29857-00-58?
29857-00-58 is a SEAT,VALVE.
What parts can replace 29857-00-58?
There are 2 known substitutes for 29857-00-58: 23779NPC16PT29857-00-58, 38765-00-58. Substitute compatibility should be verified for your specific system.
What is the NSN for 29857-00-58?
29857-00-58 is cataloged in the U.S. Government catalog under NSN 4820-00-595-4562. 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.