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5001003-C311-3B — ADAPTER,STRAIGHT,FLANGE TO TUBE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

5001003-C311-3B: ADAPTER,STRAIGHT,FLANGE TO TUBE.

ADAPTER,STRAIGHT,FLANGE TO TUBE. Key specifications include material: STEEL CORROSION RESISTING, pressure_class: ERR-060, spherical_diameter: 1.365 INCHES NOMINAL IN, end_item_identification: 4820-01-506-8883 BALL VALVE, valve_design_control_activity: 53711, valve_size_for_which_designed: 0.500 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-506-8885, 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
5001003-C311-3B
NSN: 4820-01-506-8885
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
pressure_classERR-060
spherical_diameter1.365 INCHES NOMINAL IN
end_item_identification4820-01-506-8883 BALL VALVE
valve_design_control_activity53711
valve_size_for_which_designed0.500 INCHES IN
NSN4820-01-506-8885
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 5001003-C311-3B · 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
•
SPHERICAL DIAMETER: 1.365 INCHES NOMINAL IN
•
VALVE SIZE FOR WHICH DESIGNED: 0.500 INCHES IN
•
VALVE DESIGN CONTROL ACTIVITY: 53711
•
PRESSURE CLASS: ERR-060
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
SPHERICAL DIAMETER1.365 INCHES NOMINAL IN
VALVE SIZE FOR WHICH DESIGNED0.500 INCHES IN
VALVE DESIGN CONTROL ACTIVITY53711
END ITEM IDENTIFICATION4820-01-506-8883 BALL VALVE
PRESSURE CLASSERR-060
MATERIALSTEEL CORROSION RESISTING
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 1
803-5001003Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 5001003-C311-3B?
5001003-C311-3B is a ADAPTER,STRAIGHT,FLANGE TO TUBE.
What parts can replace 5001003-C311-3B?
There is 1 known substitute for 5001003-C311-3B: 803-5001003. Substitute compatibility should be verified for your specific system.
What is the NSN for 5001003-C311-3B?
5001003-C311-3B is cataloged in the U.S. Government catalog under NSN 4820-01-506-8885. 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.