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S343-3-7 — BOLT,SHEAR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

S343-3-7: BOLT,SHEAR.

The BOLT,SHEAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: SPLINE EXTENDED WASHER, grip_length: 0.4225 INCHES MINIMUM AND 0.4525 INCHES MAXIMUM IN, head_height: 0.195 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-477-7335, 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
S343-3-7
NSN: 5306-01-477-7335
FSC: 5306 — Bolts
CAGE: 97928 — HUCK INTL INC (USA)
SPECIFICATIONS
materialSTEEL COMP XM-13 OVERALL
head_styleSPLINE EXTENDED WASHER
grip_length0.4225 INCHES MINIMUM AND 0.4525 INCHES MAXIMUM IN
head_height0.195 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN
thread_length0.399 INCHES NOMINAL IN
fastener_length0.8215 INCHES MINIMUM AND 0.8510 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
head_minor_diameter0.253 INCHES MINIMUM AND 0.259 INCHES MAXIMUM IN
nominal_thread_diameter0.190 INCHES IN
NSN5306-01-477-7335
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: S343-3-7 · 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: 0.017 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.195 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.8215 INCHES MINIMUM AND 0.8510 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
EXTENDED WASHER DIAMETER: 0.349 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.399 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: A,S 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.017 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
HEAD HEIGHT0.195 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
FASTENER LENGTH0.8215 INCHES MINIMUM AND 0.8510 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
EXTENDED WASHER DIAMETER0.349 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
THREAD LENGTH0.399 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONA,S 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLESPLINE EXTENDED WASHER
THREAD DIRECTIONRIGHT-HAND
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 3
VS3190-3-7Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
PBF 1267-3-7Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MB156-3-7Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S343-3-7?
S343-3-7 is a BOLT,SHEAR.
What parts can replace S343-3-7?
There are 3 known substitutes for S343-3-7: VS3190-3-7, PBF 1267-3-7, MB156-3-7. Substitute compatibility should be verified for your specific system.
What is the NSN for S343-3-7?
S343-3-7 is cataloged in the U.S. Government catalog under NSN 5306-01-477-7335. 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.