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PartsTable / COMPONENT / 056625 ITEM 21 35298
056625 ITEM 21 35298 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 0.410 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 4.857 INCHES NOMINAL IN, style_designator: THREADED FLANGED, seat_angle_in_deg: 30.000 NOMINAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-166-8704, 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
056625 ITEM 21 35298
NSN: 4820-01-166-8704
FSC: 4820
CAGE: 48422 — WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thread_class2A SINGLE THREADED PORTION A
thread_length0.410 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter4.857 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
seat_angle_in_deg30.000 NOMINAL
nominal_thread_size4.625 INCHES SINGLE THREADED PORTION IN
under_flange_height0.585 INCHES NOMINAL IN
body_inside_diameter4.000 INCHES NOMINAL IN
seating_surface_shapeANGULAR
thread_quantity_per_inch14 SINGLE THREADED PORTION
thread_series_designatorUNS SINGLE THREADED PORTION
NSN4820-01-166-8704
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 056625 ITEM 21 35298 · 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
•
SEAT ANGLE IN DEG: 30.000 NOMINAL
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
THREAD SERIES DESIGNATOR: UNS SINGLE THREADED PORTION
•
STYLE DESIGNATOR: THREADED FLANGED
•
THREAD CLASS: 2A SINGLE THREADED PORTION A
•
FLANGE SEAT TO DISK END HEIGHT: 0.335 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 4.000 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 0.585 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SEAT ANGLE IN DEG30.000 NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS2A SINGLE THREADED PORTION A
FLANGE SEAT TO DISK END HEIGHT0.335 INCHES NOMINAL IN
BODY INSIDE DIAMETER4.000 INCHES NOMINAL IN
UNDER FLANGE HEIGHT0.585 INCHES NOMINAL IN
THREAD LENGTH0.410 INCHES NOMINAL SINGLE THREADED PORTION IN
FLANGE DIAMETER4.857 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
35298Interchangeable
interchangeable cross-reference
interchangeable
P13002Interchangeable
interchangeable cross-reference
interchangeable
13002Interchangeable
interchangeable cross-reference
interchangeable
250644C91Interchangeable
interchangeable cross-reference
interchangeable
140091Interchangeable
interchangeable cross-reference
interchangeable
7089A425088Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 056625 ITEM 21 35298?
056625 ITEM 21 35298 is a SEAT,VALVE.
What parts can replace 056625 ITEM 21 35298?
There are 6 known substitutes for 056625 ITEM 21 35298: 35298, P13002, 13002 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 056625 ITEM 21 35298?
056625 ITEM 21 35298 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-166-8704. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026