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PartsTable / COMPONENT / DM47520 ITEM 40
DM47520 ITEM 40 ✓ 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 UNIVERSAL JOINT,VEHICULAR is a the manufacturer industrial component. Key specifications include end_item_identification: OPERATOR GEAR ASSEMBLY FOR TRIDENT SUBMARINE, general_characteristics_item_description: NICKEL COPPER,4.000 DIA,1.215 H.,0.750 TO 0.750 DIA SLOT,1.000 IS SQUARE HOLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-261-0145, 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
DM47520 ITEM 40
NSN: 4820-01-261-0145
FSC: 4820
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
end_item_identificationOPERATOR GEAR ASSEMBLY FOR TRIDENT SUBMARINE
general_characteristics_item_descriptionNICKEL COPPER,4.000 DIA,1.215 H.,0.750 TO 0.750 DIA SLOT,1.000 IS SQUARE HOLE
NSN4820-01-261-0145
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: DM47520 ITEM 40 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
87643-7502Interchangeable
interchangeable cross-reference
interchangeable
501-4675699 ITEM 1Interchangeable
interchangeable cross-reference
interchangeable
501-4675699Interchangeable
interchangeable cross-reference
interchangeable
501-4675699 ITEM 2Interchangeable
interchangeable cross-reference
interchangeable
501-4675699 ITEM 3Interchangeable
interchangeable cross-reference
interchangeable
501-4675699 ITEM 4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DM47520 ITEM 40?
DM47520 ITEM 40 is a UNIVERSAL JOINT,VEHICULAR.
What parts can replace DM47520 ITEM 40?
There are 16 known substitutes for DM47520 ITEM 40: 87643-7502, 501-4675699 ITEM 1, 501-4675699 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DM47520 ITEM 40?
DM47520 ITEM 40 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-261-0145. 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