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VB56 ✓ 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 COMMUNICATION SYSTEM is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-483-0712, 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
VB56
NSN: 4820-00-483-0712
FSC: 4820
CAGE: 53918 — SEPARATION & RECOVERY SYSTEMS INC (USA)
SPECIFICATIONS
Part NumberVB56
NSN4820-00-483-0712
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: VB56 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: C/O TWO BRASS ANGLE VALVES,TWO BRASS RODS 0.295 IN. DIA BY 14.250 IN. LG,ONE GLASS TUBE 12.000 IN. LG;BOTH VALVES HAVE 0.375 IN. UNTHREADED INTERNAL PIPE SIDE PORT AND 0.500 IN. EXTERNAL NPT BOTTOM PORT IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONC/O TWO BRASS ANGLE VALVES,TWO BRASS RODS 0.295 IN. DIA BY 14.250 IN. LG,ONE GLASS TUBE 12.000 IN. LG;BOTH VALVES HAVE 0.375 IN. UNTHREADED INTERNAL PIPE SIDE PORT AND 0.500 IN. EXTERNAL NPT BOTTOM PORT IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
NO-1Interchangeable
interchangeable cross-reference
interchangeable
N0 1Interchangeable
interchangeable cross-reference
interchangeable
NO.1Interchangeable
interchangeable cross-reference
interchangeable
SPENCO INSOLESInterchangeable
interchangeable cross-reference
interchangeable
40-014-01Interchangeable
interchangeable cross-reference
interchangeable
3695L12Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is VB56?
VB56 is a COMMUNICATION SYSTEM.
What parts can replace VB56?
There are 6 known substitutes for VB56: NO-1, N0 1, NO.1 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for VB56?
VB56 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-483-0712. 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