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A7424.001.156 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

A7424.001.156: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410 OVERALL, thread_class: 3A SINGLE THREADED PORTION A, thread_length: 1.500 INCHES NOMINAL SINGLE THREADED PORTION IN, overall_height: 1.688 INCHES NOMINAL IN, style_designator: PLAIN THREADED, nominal_thread_size: 1.500 INCHES SINGLE THREADED PORTION IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-888-3258, 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
A7424.001.156
NSN: 4820-00-888-3258
FSC: 4820 — Valves, Nonpowered
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
materialSTEEL COMP 410 OVERALL
thread_class3A SINGLE THREADED PORTION A
thread_length1.500 INCHES NOMINAL SINGLE THREADED PORTION IN
overall_height1.688 INCHES NOMINAL IN
style_designatorPLAIN THREADED
nominal_thread_size1.500 INCHES SINGLE THREADED PORTION IN
body_inside_diameter1.000 INCHES NOMINAL IN
seating_surface_shapeFLAT
thread_quantity_per_inch8 SINGLE THREADED PORTION
thread_series_designatorUNS SINGLE THREADED PORTION
NSN4820-00-888-3258
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A7424.001.156 · 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
•
THREAD LENGTH: 1.500 INCHES NOMINAL SINGLE THREADED PORTION IN
•
STYLE DESIGNATOR: PLAIN THREADED
•
BODY INSIDE DIAMETER: 1.000 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 1.500 INCHES SINGLE THREADED PORTION IN
•
THREAD CLASS: 3A SINGLE THREADED PORTION A
•
THREAD QUANTITY PER INCH: 8 SINGLE THREADED PORTION
•
MATERIAL: STEEL COMP 410 OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.688 INCHES NOMINAL IN
THREAD LENGTH1.500 INCHES NOMINAL SINGLE THREADED PORTION IN
STYLE DESIGNATORPLAIN THREADED
BODY INSIDE DIAMETER1.000 INCHES NOMINAL IN
NOMINAL THREAD SIZE1.500 INCHES SINGLE THREADED PORTION IN
THREAD CLASS3A SINGLE THREADED PORTION A
THREAD QUANTITY PER INCH8 SINGLE THREADED PORTION
MATERIALSTEEL COMP 410 OVERALL
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
SEATING SURFACE SHAPEFLAT
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A7424.001.156?
A7424.001.156 is a SEAT,VALVE.
What is the NSN for A7424.001.156?
A7424.001.156 is cataloged in the U.S. Government catalog under NSN 4820-00-888-3258. 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.