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330476-T521 — VALVE,ANGLE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

330476-T521: VALVE,ANGLE.

The VALVE,ANGLE is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-279-7223, 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
330476-T521
NSN: 4820-01-279-7223
NIINs: 012797223, 014981486
FSC: 4820 — Valves, Nonpowered
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
NSN4820-01-279-7223
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 330476-T521 · 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
•
FLOW CONTROL DEVICE: DISK
•
NOMINAL PIPE SIZE ACCOMMODATED: 1.000 INCHES ALL ENDS IN
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: ANGLE
•
BONNET TYPE: INSIDE SCREW
•
BONNET ATTACHMENT METHOD: UNION
•
MATERIAL: TITANIUM ALLOY BODY
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK
NOMINAL PIPE SIZE ACCOMMODATED1.000 INCHES ALL ENDS IN
CRITICALITY CODE JUSTIFICATIONZZZY
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
STYLE DESIGNATORANGLE
BONNET TYPEINSIDE SCREW
BONNET ATTACHMENT METHODUNION
MATERIALTITANIUM ALLOY BODY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
SUBSTITUTES & CROSS-REFERENCES 1
330476-T521L1Same 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)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 330476-T521?
330476-T521 is a VALVE,ANGLE.
What parts can replace 330476-T521?
There is 1 known substitute for 330476-T521: 330476-T521L1. Substitute compatibility should be verified for your specific system.
What is the NSN for 330476-T521?
330476-T521 is cataloged in the U.S. Government catalog under NSN 4820-01-279-7223. 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.