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B434-2120-A1 — ACTUATOR,HYDRAULIC-PNEUMATIC,LIN

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

B434-2120-A1: ACTUATOR,HYDRAULIC-PNEUMATIC,LIN.

ACTUATOR,HYDRAULIC-PNEUMATIC,LIN. Key specifications include end_item_identification: SEAWOLF CLASS SSN, part_name_assigned_by_controlling_agency: LOCK ASSEMBLY, HYDRAULICS, SWITCH ACTUATOR. This part is cataloged in the U.S.

Government catalog under NSN 4810-01-507-3155, 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
B434-2120-A1
NSN: 4810-01-507-3155
FSC: 4810 — Valves, Powered
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
end_item_identificationSEAWOLF CLASS SSN
part_name_assigned_by_controlling_agencyLOCK ASSEMBLY, HYDRAULICS, SWITCH ACTUATOR
NSN4810-01-507-3155
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B434-2120-A1 · 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
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYLOCK ASSEMBLY, HYDRAULICS, SWITCH ACTUATOR
END ITEM IDENTIFICATIONSEAWOLF CLASS SSN
SUBSTITUTES & CROSS-REFERENCES 1
7410288Reference 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 B434-2120-A1?
B434-2120-A1 is a ACTUATOR,HYDRAULIC-PNEUMATIC,LIN.
What parts can replace B434-2120-A1?
There is 1 known substitute for B434-2120-A1: 7410288. Substitute compatibility should be verified for your specific system.
What is the NSN for B434-2120-A1?
B434-2120-A1 is cataloged in the U.S. Government catalog under NSN 4810-01-507-3155. 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.