PartsTable
Technical Data Sheet
Download PDF

S343-8-61 — BOLT,SHEAR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

S343-8-61: 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: 3.802 INCHES MINIMUM AND 3.822 INCHES MAXIMUM IN, head_height: 0.358 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-133-5813, 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
S343-8-61
NSN: 5306-01-133-5813
FSC: 5306 — Bolts
CAGE: 97928 — HUCK INTL INC (USA)
SPECIFICATIONS
materialSTEEL COMP XM-13 OVERALL
head_styleSPLINE EXTENDED WASHER
grip_length3.802 INCHES MINIMUM AND 3.822 INCHES MAXIMUM IN
head_height0.358 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN
thread_length0.742 INCHES MINIMUM AND 0.792 INCHES MAXIMUM IN
fastener_length4.564 INCHES MINIMUM AND 4.594 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
head_minor_diameter0.547 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
nominal_thread_diameter0.500 INCHES IN
NSN5306-01-133-5813
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: S343-8-61 · 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: 0.062 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.358 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN
•
FASTENER LENGTH: 4.564 INCHES MINIMUM AND 4.594 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
EXTENDED WASHER DIAMETER: 0.922 INCHES MINIMUM AND 0.932 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.742 INCHES MINIMUM AND 0.792 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.062 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
HEAD HEIGHT0.358 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN
FASTENER LENGTH4.564 INCHES MINIMUM AND 4.594 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
EXTENDED WASHER DIAMETER0.922 INCHES MINIMUM AND 0.932 INCHES MAXIMUM IN
THREAD LENGTH0.742 INCHES MINIMUM AND 0.792 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.500 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 4
ST3M753-8-61Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
VS3190-8-61Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
GS1032-8-61Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
10115918Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy S343-8-61?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is S343-8-61?
S343-8-61 is a BOLT,SHEAR.
What parts can replace S343-8-61?
There are 4 known substitutes for S343-8-61: ST3M753-8-61, VS3190-8-61, GS1032-8-61 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S343-8-61?
S343-8-61 is cataloged in the U.S. Government catalog under NSN 5306-01-133-5813. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — S343-8-61

✓ 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.