PartsTable
Technical Data Sheet
A2308-3 ✓ 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 BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, corner_shape: SQUARE INSIDE LEFT CORNER, hole_diameter: 0.3125 INCHES NOMINAL FIRST IN, special_features: HOLE TO BE DRILLED AFTER ASSEMBLY IN PILLOW BLOCK, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 2.0035 INCHES MINIMUM AND 2.0050 INCHES MAXIMUM 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 4820-00-421-9406, 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
A2308-3
NSN: 4820-00-421-9406
FSC: 4820
CAGE: 58455 — SUPERIOR AIR PRODUCTS CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE INSIDE LEFT CORNER
hole_diameter0.3125 INCHES NOMINAL FIRST IN
special_featuresHOLE TO BE DRILLED AFTER ASSEMBLY IN PILLOW BLOCK
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter2.0035 INCHES MINIMUM AND 2.0050 INCHES MAXIMUM IN
body_outside_diameter2.3775 INCHES MINIMUM AND 2.3790 INCHES MAXIMUM IN
material_document_and_classificationASTM B202,TYPE 1,CLASS A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
antirotation/lubrication_type_and_quantity1 HOLE
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY INSIDE RIGHT CORNER CHAMFER ANGLE IN DEG AND SPECIAL FEATURES
NSN4820-00-421-9406
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: A2308-3 · 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
CONNECTION STYLE: PLAIN (PIPE) SECOND ENDPLAIN (PIPE) SECOND END
BONNET TYPE: INSIDE SPRINGINSIDE SPRING
MEDIA FOR WHICH DESIGNED: GAS, NATURAL SECOND RESPONSE
THREAD SERIES DESIGNATOR: NPT SECOND ENDNPT FIRST END
NOMINAL THREAD SIZE: 0.750 INCHES FIRST END0.750 INCHES FIRST END IN
FEATURES PROVIDED: VALVE STEM LOCK SHIELDVALVE STEM LOCK SHIELD
STYLE DESIGNATOR: ANGLE
BONNET ATTACHMENT METHOD: THREADEDTHREADED
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEPLAIN (PIPE) SECOND ENDPLAIN (PIPE) SECOND END
BONNET TYPEINSIDE SPRINGINSIDE SPRING
MEDIA FOR WHICH DESIGNEDGAS, NATURAL SECOND RESPONSE
THREAD SERIES DESIGNATORNPT SECOND ENDNPT FIRST END
NOMINAL THREAD SIZE0.750 INCHES FIRST END0.750 INCHES FIRST END IN
FEATURES PROVIDEDVALVE STEM LOCK SHIELDVALVE STEM LOCK SHIELD
STYLE DESIGNATORANGLE
BONNET ATTACHMENT METHODTHREADEDTHREADED
CONNECTION TYPETHREADED INTERNAL PIPE FIRST ENDTHREADED INTERNAL PIPE FIRST END
THREAD SERIES DESIGNATORNPT SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
21146Interchangeable
interchangeable cross-reference
interchangeable
A2308-3Interchangeable
interchangeable cross-reference
interchangeable
26-1/2IN-100PSIInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A2308-3?
A2308-3 is a BEARING,SLEEVE.
What parts can replace A2308-3?
There are 3 known substitutes for A2308-3: 21146, A2308-3, 26-1/2IN-100PSI. Substitute compatibility should be verified for your specific system.
What is the NSN for A2308-3?
A2308-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-421-9406. This indicates validated use in U.S. government and defense supply chains.
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