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Technical Data Sheet
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A4358 ✓ 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 MICROCIRCUIT,LINEAR is a the manufacturer industrial component. Key specifications include head_style: BUTTON, body_height: 0.165 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN, head_height: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN, hole_diameter: 0.312 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 4820-00-021-1728, 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
A4358
NSN: 4820-00-021-1728
FSC: 4820
CAGE: 72433 — FLEXITALLIC GASKET CO INC (USA)
SPECIFICATIONS
materialSTEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4140 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL
head_styleBUTTON
body_height0.165 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
head_height0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
hole_diameter0.312 INCHES NOMINAL IN
thread_length0.339 INCHES MINIMUM AND 0.379 INCHES MAXIMUM IN
fastener_length1.787 INCHES MINIMUM AND 1.807 INCHES MAXIMUM IN
groove_diameter0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
outside_diameter18.250 INCHES NOMINAL IN
special_featuresUSED ON F4224 PHOTOGRAPHIC FEED ADAPTER
NSN4820-00-021-1728
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A4358 · 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
•
BOLT HOLE QUANTITY: 24
•
CENTER HOLE DIAMETER: 0.438 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT
•
MATERIAL THICKNESS: 0.130 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC
•
HOLE DIAMETER: 0.312 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 17.625 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 18.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BOLT HOLE QUANTITY24
CENTER HOLE DIAMETER0.438 INCHES NOMINAL IN
STYLE DESIGNATORFLAT
MATERIAL THICKNESS0.130 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC
HOLE DIAMETER0.312 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER17.625 INCHES NOMINAL IN
OUTSIDE DIAMETER18.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
A43-58Interchangeable
interchangeable cross-reference
interchangeable
AN25-28Interchangeable
interchangeable cross-reference
interchangeable
83452801-0Interchangeable
interchangeable cross-reference
interchangeable
CA3130TInterchangeable
interchangeable cross-reference
interchangeable
A-04358Interchangeable
interchangeable cross-reference
interchangeable
JA-04358Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A4358?
A4358 is a MICROCIRCUIT,LINEAR.
What parts can replace A4358?
There are 6 known substitutes for A4358: A43-58, AN25-28, 83452801-0 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A4358?
A4358 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-021-1728. 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