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556-6405334-AY88 — VALVE,BALL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

556-6405334-AY88: VALVE,BALL.

The VALVE,BALL is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: MATERIAL FOR 3H NSN ASSIGNMENT. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-346-3873, 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
556-6405334-AY88
NSN: 4820-01-346-3873
NIINs: 013463873, 014174011
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL FOR 3H NSN ASSIGNMENT
NSN4820-01-346-3873
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 556-6405334-AY88 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 HANDLE
•
NOMINAL PIPE SIZE ACCOMMODATED: 1.000 INCHES ALL ENDS IN
•
CONNECTION STYLE: SOCKET ALL ENDS
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CONNECTION TYPE: UNTHREADED INTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU
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OPERATING PRESSURE: 3300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MATERIAL: ALUMINUM ALLOY STEM
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 HANDLE
NOMINAL PIPE SIZE ACCOMMODATED1.000 INCHES ALL ENDS IN
CONNECTION STYLESOCKET ALL ENDS
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE3300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALALUMINUM ALLOY STEM
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIALSTEEL CORROSION RESISTING BODY
VALVE OPERATION METHODMANUAL
SUBSTITUTES & CROSS-REFERENCES 1
211030125Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 556-6405334-AY88?
556-6405334-AY88 is a VALVE,BALL.
What parts can replace 556-6405334-AY88?
There is 1 known substitute for 556-6405334-AY88: 211030125. Substitute compatibility should be verified for your specific system.
What is the NSN for 556-6405334-AY88?
556-6405334-AY88 is cataloged in the U.S. Government catalog under NSN 4820-01-346-3873. 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.