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Technical Data Sheet
PartsTable / COMPONENT / 4750B
4750B ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The DIAPHRAGM,VALVE,FLAT is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, hole_diameter: 0.450 INCHES NOMINAL IN, outside_diameter: 5.850 INCHES NOMINAL IN, style_designator: FLAT, bolt_hole_quantity: 10, material_thickness: 0.080 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-690-2068, 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
4750B
NSN: 4820-00-690-2068
FSC: 4820
CAGE: 0AT62 — SIEMENS ENERGY, INC. DBA DRESSER-RAND (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
hole_diameter0.450 INCHES NOMINAL IN
outside_diameter5.850 INCHES NOMINAL IN
style_designatorFLAT
bolt_hole_quantity10
material_thickness0.080 INCHES NOMINAL IN
bolt_circle_diameter5.125 INCHES NOMINAL IN
NSN4820-00-690-2068
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4750B · 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
•
HOLE DIAMETER: 0.450 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT
•
OUTSIDE DIAMETER: 5.850 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 10
•
MATERIAL THICKNESS: 0.080 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC
•
BOLT CIRCLE DIAMETER: 5.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.450 INCHES NOMINAL IN
STYLE DESIGNATORFLAT
OUTSIDE DIAMETER5.850 INCHES NOMINAL IN
BOLT HOLE QUANTITY10
MATERIAL THICKNESS0.080 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
BOLT CIRCLE DIAMETER5.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
2006 6Interchangeable
interchangeable cross-reference
interchangeable
GGG-D-751 TYCInterchangeable
interchangeable cross-reference
interchangeable
44476Interchangeable
interchangeable cross-reference
interchangeable
6656Interchangeable
interchangeable cross-reference
interchangeable
L853NSH1PC313Interchangeable
interchangeable cross-reference
interchangeable
516-1929544 PIECE 9Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4750B?
4750B is a DIAPHRAGM,VALVE,FLAT.
What parts can replace 4750B?
There are 19 known substitutes for 4750B: 2006 6, GGG-D-751 TYC, 44476 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4750B?
4750B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-690-2068. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026