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056420 — VALVE,GATE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

056420: VALVE,GATE.

The VALVE,GATE is a the manufacturer industrial component. Key specifications include material: STEEL, stem_type: RISING, valve_size: 4.000 INCHES IN, bonnet_type: OUTSIDE SCREW-YOKE, thread_class: 3A SINGLE THREADED PORTION A, thread_length: 0.578 INCHES NOMINAL SINGLE THREADED PORTION IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-165-9603, 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
056420
NSN: 4820-01-165-9603
NIINs: 011659603, 011668620, 011688076
FSC: 4820 — Valves, Nonpowered
CAGE: 48422 — WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION (USA)
SPECIFICATIONS
materialSTEEL
stem_typeRISING
valve_size4.000 INCHES IN
bonnet_typeOUTSIDE SCREW-YOKE
thread_class3A SINGLE THREADED PORTION A
thread_length0.578 INCHES NOMINAL SINGLE THREADED PORTION IN
overall_height4.994 INCHES MINIMUM AND 4.996 INCHES MAXIMUM IN
pressure_classERR-060
connection_typeBUTT WELD PIPE
style_designatorFAUCET
features_providedBONNET PACKING
nominal_thread_size5.000 INCHES SINGLE THREADED PORTION IN
NSN4820-01-165-9603
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 056420 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A216,GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A216,GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 1
121050Reference 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 056420?
056420 is a VALVE,GATE.
What parts can replace 056420?
There is 1 known substitute for 056420: 121050. Substitute compatibility should be verified for your specific system.
What is the NSN for 056420?
056420 is cataloged in the U.S. Government catalog under NSN 4820-01-165-9603. 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.