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EWB0420-3-6 — BOLT,SHEAR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

EWB0420-3-6: BOLT,SHEAR.

The BOLT,SHEAR is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, head_style: DOUBLE HEXAGON W/HOLE, grip_length: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, head_height: 0.275 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-355-8317, 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
EWB0420-3-6
NSN: 5306-01-355-8317
FSC: 5306 — Bolts
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
head_styleDOUBLE HEXAGON W/HOLE
grip_length0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
head_height0.275 INCHES NOMINAL IN
thread_class3A A
grip_diameter0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN
thread_length0.408 INCHES NOMINAL IN
fastener_length0.768 INCHES MINIMUM AND 0.798 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
width_between_flats0.245 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
nominal_thread_diameter0.190 INCHES IN
extended_washer_diameter0.340 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN
NSN5306-01-355-8317
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: EWB0420-3-6 · 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
•
EXTENDED WASHER THICKNESS: 0.064 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.275 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.768 INCHES MINIMUM AND 0.798 INCHES MAXIMUM IN
•
EXTENDED WASHER DIAMETER: 0.340 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.408 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: DOUBLE HEXAGON W/HOLE
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.064 INCHES NOMINAL IN
HEAD HEIGHT0.275 INCHES NOMINAL IN
FASTENER LENGTH0.768 INCHES MINIMUM AND 0.798 INCHES MAXIMUM IN
EXTENDED WASHER DIAMETER0.340 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN
THREAD LENGTH0.408 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEDOUBLE HEXAGON W/HOLE
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 2
145-530-9203Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MTP530-9203Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is EWB0420-3-6?
EWB0420-3-6 is a BOLT,SHEAR.
What parts can replace EWB0420-3-6?
There are 2 known substitutes for EWB0420-3-6: 145-530-9203, MTP530-9203. Substitute compatibility should be verified for your specific system.
What is the NSN for EWB0420-3-6?
EWB0420-3-6 is cataloged in the U.S. Government catalog under NSN 5306-01-355-8317. 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.