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A07420002156 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

A07420002156: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 1.440 INCHES NOMINAL SINGLE THREADED PORTION IN, overall_height: 1.690 INCHES NOMINAL IN, style_designator: PLAIN THREADED, seat_angle_in_deg: 45.000 MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-379-4449, 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
A07420002156
NSN: 4820-01-379-4449
FSC: 4820 — Valves, Nonpowered
CAGE: 15187 — EMERSON AUTOMATION SOLUTIONS FINAL CONTROL US LP DIV NAVY PRODUCT TEAM (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
thread_class2A SINGLE THREADED PORTION A
thread_length1.440 INCHES NOMINAL SINGLE THREADED PORTION IN
overall_height1.690 INCHES NOMINAL IN
style_designatorPLAIN THREADED
seat_angle_in_deg45.000 MAXIMUM
nominal_thread_size1.500 INCHES SINGLE THREADED PORTION IN
body_inside_diameter1.000 INCHES NOMINAL IN
seating_surface_shapeANGULAR
thread_series_designatorUNEF SINGLE THREADED PORTION
NSN4820-01-379-4449
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A07420002156 · 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: 1.440 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: 2A SINGLE THREADED PORTION A
•
MATERIAL: STEEL COMP 303 OVERALL
•
SEAT ANGLE IN DEG: 45.000 MAXIMUM
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.690 INCHES NOMINAL IN
THREAD LENGTH1.440 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 CLASS2A SINGLE THREADED PORTION A
MATERIALSTEEL COMP 303 OVERALL
SEAT ANGLE IN DEG45.000 MAXIMUM
THREAD SERIES DESIGNATORUNEF SINGLE THREADED PORTION
SEATING SURFACE SHAPEANGULAR
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
SW102-16Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is A07420002156?
A07420002156 is a SEAT,VALVE.
What parts can replace A07420002156?
There is 1 known substitute for A07420002156: SW102-16. Substitute compatibility should be verified for your specific system.
What is the NSN for A07420002156?
A07420002156 is cataloged in the U.S. Government catalog under NSN 4820-01-379-4449. 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.