056950 ITEM 20 — SEAT,VALVE

✓ Government record, cited

— · GATE VALVE

PRODUCT OVERVIEW

056950 ITEM 20: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 0.422 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 3.250 INCHES NOMINAL IN, style_designator: THREADED FLANGED, nominal_thread_size: 2.969 INCHES SINGLE THREADED PORTION IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-146-9996, 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

056950 ITEM 20

NSN: 4820-01-146-9996
FSC: 4820 — Valves, Nonpowered
CAGE: 48422 — WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION (USA)

SPECIFICATIONS

material	STEEL OVERALL
thread_class	2A SINGLE THREADED PORTION A
thread_length	0.422 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter	3.250 INCHES NOMINAL IN
style_designator	THREADED FLANGED
nominal_thread_size	2.969 INCHES SINGLE THREADED PORTION IN
under_flange_height	0.547 INCHES NOMINAL IN
seating_surface_shape	FLAT
thread_quantity_per_inch	14 SINGLE THREADED PORTION
thread_series_designator	UNS SINGLE THREADED PORTION
body_stepped_inside_diameter	2.375 INCHES MINIMUM AND 2.500 INCHES MAXIMUM FIRST STEP IN
flange_seat_to_disk_end_height	0.266 INCHES NOMINAL IN
NSN	4820-01-146-9996

COMPONENT DIAGRAM

KEY FEATURES

•

FLANGE SEAT TO DISK END HEIGHT: 0.266 INCHES NOMINAL IN

•

FLANGE DIAMETER: 3.250 INCHES NOMINAL IN

•

THREAD LENGTH: 0.422 INCHES NOMINAL SINGLE THREADED PORTION IN

•

BODY STEPPED INSIDE DIAMETER: 2.375 INCHES MINIMUM AND 2.500 INCHES MAXIMUM FIRST STEP IN

•

STYLE DESIGNATOR: THREADED FLANGED

•

NOMINAL THREAD SIZE: 2.969 INCHES SINGLE THREADED PORTION IN

•

UNDER FLANGE HEIGHT: 0.547 INCHES NOMINAL IN

•

THREAD CLASS: 2A SINGLE THREADED PORTION A

TECHNICAL CHARACTERISTICS

FLANGE SEAT TO DISK END HEIGHT	0.266 INCHES NOMINAL IN
FLANGE DIAMETER	3.250 INCHES NOMINAL IN
THREAD LENGTH	0.422 INCHES NOMINAL SINGLE THREADED PORTION IN
BODY STEPPED INSIDE DIAMETER	2.375 INCHES MINIMUM AND 2.500 INCHES MAXIMUM FIRST STEP IN
STYLE DESIGNATOR	THREADED FLANGED
NOMINAL THREAD SIZE	2.969 INCHES SINGLE THREADED PORTION IN
UNDER FLANGE HEIGHT	0.547 INCHES NOMINAL IN
THREAD CLASS	2A SINGLE THREADED PORTION A
THREAD QUANTITY PER INCH	14 SINGLE THREADED PORTION
MATERIAL	STEEL OVERALL

SUBSTITUTES & CROSS-REFERENCES 1

056950Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 056950 ITEM 20?

056950 ITEM 20 is a SEAT,VALVE.

What parts can replace 056950 ITEM 20?

There is 1 known substitute for 056950 ITEM 20: 056950. Substitute compatibility should be verified for your specific system.

What is the NSN for 056950 ITEM 20?

056950 ITEM 20 is cataloged in the U.S. Government catalog under NSN 4820-01-146-9996. This indicates validated use in U.S. government and defense supply chains.

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