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S1515-20426-10 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

S1515-20426-10: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, head_style: HEXAGON, head_height: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.595 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN, shoulder_shape: ROUND FIRST SHOULDER. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-891-3236, 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
S1515-20426-10
NSN: 5306-00-891-3236
FSC: 5306 — Bolts
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
head_styleHEXAGON
head_height0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
thread_class3A A
thread_length0.595 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length2.188 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL
shoulder_length1.531 INCHES MINIMUM AND 1.593 INCHES MAXIMUM FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.4672 INCHES MINIMUM AND 0.4677 INCHES MAXIMUM FIRST SHOULDER IN
surface_treatmentCADMIUM OVERALL
NSN5306-00-891-3236
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: S1515-20426-10 · 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: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.188 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
•
SHOULDER LENGTH: 1.531 INCHES MINIMUM AND 1.593 INCHES MAXIMUM FIRST SHOULDER IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SHOULDER DIAMETER: 0.4672 INCHES MINIMUM AND 0.4677 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 0.595 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
FASTENER LENGTH2.188 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
SHOULDER LENGTH1.531 INCHES MINIMUM AND 1.593 INCHES MAXIMUM FIRST SHOULDER IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SHOULDER DIAMETER0.4672 INCHES MINIMUM AND 0.4677 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH0.595 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.438 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S1515-20426-10?
S1515-20426-10 is a BOLT,SHOULDER.
What is the NSN for S1515-20426-10?
S1515-20426-10 is cataloged in the U.S. Government catalog under NSN 5306-00-891-3236. 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.