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Technical Data Sheet
PartsTable / COMPONENT / B358
B358 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The FILTER ELEMENT,FLUID is a the manufacturer industrial component. Key specifications include material: PAPER FILTERING MEDIUM, head_style: HEXAGON, design_type: NONREUSABLE, grip_length: 1.250 INCHES NOMINAL IN, head_height: 0.312 INCHES NOMINAL IN, thread_class: 3A A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-448-0884, 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
B358
NSN: 5306-00-448-0884
FSC: 5306
CAGE: 35301 — DRESSER INDUSTRIES INC LEROI DIV (USA)
SPECIFICATIONS
materialPAPER FILTERING MEDIUM
head_styleHEXAGON
design_typeNONREUSABLE
grip_length1.250 INCHES NOMINAL IN
head_height0.312 INCHES NOMINAL IN
thread_class3A A
body_diameter3.812 INCHES NOMINAL IN
thread_length1.000 INCHES MINIMUM IN
flow_directionOUTSIDE IN
fastener_length2.250 INCHES NOMINAL IN
special_featuresTWO DRILLED HOLES
style_designatorCYLINDRICAL W/ INTEGRAL OUTER CASING
NSN5306-00-448-0884
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: B358 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MINIMUM YIELD STRENGTH: 125000 POUNDS PER SQUARE INCH LBS
•
GRIP LENGTH: 1.250 INCHES NOMINAL IN
•
HEAD STYLE: HEXAGON
•
THREAD QUANTITY PER INCH: 13
•
THREAD CLASS: 3A A
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL: STEEL COMP 4140 OVERALL
•
FASTENER LENGTH: 2.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MINIMUM YIELD STRENGTH125000 POUNDS PER SQUARE INCH LBS
GRIP LENGTH1.250 INCHES NOMINAL IN
HEAD STYLEHEXAGON
THREAD QUANTITY PER INCH13
THREAD CLASS3A A
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
MATERIALSTEEL COMP 4140 OVERALL
FASTENER LENGTH2.250 INCHES NOMINAL IN
HEAD HEIGHT0.312 INCHES NOMINAL IN
SPECIAL FEATURESTWO DRILLED HOLES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
51612Interchangeable
interchangeable cross-reference
interchangeable
B358Interchangeable
interchangeable cross-reference
interchangeable
1612Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B358?
B358 is a FILTER ELEMENT,FLUID.
What parts can replace B358?
There are 3 known substitutes for B358: 51612, B358, 1612. Substitute compatibility should be verified for your specific system.
What is the NSN for B358?
B358 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-448-0884. 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