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SII1058-8-2073 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

SII1058-8-2073: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.199 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 2.318 INCHES NOMINAL IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-052-9813, 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
SII1058-8-2073
NSN: 5306-01-052-9813
FSC: 5306 — Bolts
CAGE: 57928 — SONIC INDUSTRIES, INC. DBA SONIC INDUSTRIES INC DIV SONIC INDUSTRIES (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.199 INCHES NOMINAL IN
thread_class3A A
thread_length2.318 INCHES NOMINAL IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length2.511 INCHES NOMINAL IN
shoulder_length2.073 INCHES NOMINAL FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.499 INCHES NOMINAL FIRST SHOULDER IN
surface_treatmentCADMIUM OVERALL
width_between_flats0.684 INCHES NOMINAL IN
NSN5306-01-052-9813
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SII1058-8-2073 · 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
•
HEAD HEIGHT: 0.199 INCHES NOMINAL IN
•
FASTENER LENGTH: 2.511 INCHES NOMINAL IN
•
SHOULDER LENGTH: 2.073 INCHES NOMINAL FIRST SHOULDER IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
SHOULDER DIAMETER: 0.499 INCHES NOMINAL FIRST SHOULDER IN
•
THREAD LENGTH: 2.318 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
SHANK UNTHREADED HOLE DIAMETER: 0.106 INCHES NOMINAL FIRST HOLE IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.199 INCHES NOMINAL IN
FASTENER LENGTH2.511 INCHES NOMINAL IN
SHOULDER LENGTH2.073 INCHES NOMINAL FIRST SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SHOULDER DIAMETER0.499 INCHES NOMINAL FIRST SHOULDER IN
THREAD LENGTH2.318 INCHES NOMINAL IN
SHOULDER SHAPEROUND FIRST SHOULDER
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES NOMINAL FIRST HOLE IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES 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 6
71657C-8-2073Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5306PL2082129Reference document
Same NSN cross-reference
Reference document — Informative reference only
VCB0008B8-2-073Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
C4356-8-2073Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
5306PL1496929Reference document
Same NSN cross-reference
Reference document — Informative reference only
PBF4356Reference 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 SII1058-8-2073?
SII1058-8-2073 is a BOLT,SHOULDER.
What parts can replace SII1058-8-2073?
There are 6 known substitutes for SII1058-8-2073: 71657C-8-2073, 5306PL2082129, VCB0008B8-2-073 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SII1058-8-2073?
SII1058-8-2073 is cataloged in the U.S. Government catalog under NSN 5306-01-052-9813. 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.