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7986588 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

7986588: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4340 OVERALL, head_style: ROUND W/WRENCH FLATS CHAMFERED, head_height: 0.100 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN, thread_length: 0.300 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-923-4259, 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
7986588
NSN: 5306-00-923-4259
FSC: 5306 — Bolts
CAGE: 19206 — ARMY, UNITED STATES DEPARTMENT OF THE DBA WATERVLIET ARSENAL DIV BUSINESS DEVELOPMENT (USA)
SPECIFICATIONS
materialSTEEL COMP 4340 OVERALL
head_styleROUND W/WRENCH FLATS CHAMFERED
head_height0.100 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
thread_length0.300 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
shoulder_shapeROUND FIRST SHOULDER
fastener_length1.139 INCHES MINIMUM AND 1.161 INCHES MAXIMUM IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
shoulder_length0.529 INCHES MINIMUM AND 0.531 INCHES MAXIMUM FIRST SHOULDER IN
thread_directionRIGHT-HAND
shoulder_diameter0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM FIRST SHOULDER IN
NSN5306-00-923-4259
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 7986588 · 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: 0.100 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.139 INCHES MINIMUM AND 1.161 INCHES MAXIMUM IN
•
SHOULDER LENGTH: 0.529 INCHES MINIMUM AND 0.531 INCHES MAXIMUM FIRST SHOULDER IN
•
SHOULDER DIAMETER: 0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM FIRST SHOULDER IN
•
THREAD LENGTH: 0.300 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.100 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
FASTENER LENGTH1.139 INCHES MINIMUM AND 1.161 INCHES MAXIMUM IN
SHOULDER LENGTH0.529 INCHES MINIMUM AND 0.531 INCHES MAXIMUM FIRST SHOULDER IN
SHOULDER DIAMETER0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM FIRST SHOULDER IN
THREAD LENGTH0.300 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
SHOULDER SHAPEROUND FIRST SHOULDER
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEROUND W/WRENCH FLATS CHAMFERED
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

No substitute or cross-reference records for this part.

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 7986588?
7986588 is a BOLT,SHOULDER.
What is the NSN for 7986588?
7986588 is cataloged in the U.S. Government catalog under NSN 5306-00-923-4259. 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.