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Technical Data Sheet
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91280A981 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

91280A981: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, grip_length: 90.0 MILLIMETERS NOMINAL MM, head_height: 5.3 MILLIMETERS NOMINAL MM, thread_length: 90.0 MILLIMETERS NOMINAL MM, hardness_rating: 12.0 ROCKWELL C NOMINAL OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-668-0071, 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
91280A981
NSN: 5306-01-668-0071
FSC: 5306 — Bolts
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
grip_length90.0 MILLIMETERS NOMINAL MM
head_height5.3 MILLIMETERS NOMINAL MM
thread_length90.0 MILLIMETERS NOMINAL MM
hardness_rating12.0 ROCKWELL C NOMINAL OVERALL
special_featuresTHREAD SIZE:M8,THREAD PITCH:1.25MM,FASTENER STRENGHT:CLASS 8.8,THREAD SPACING: COARSE,THREAD FIT: CLASS 6H,DRIVE STYLE:EXTERAL HEX,SPECIFICATIONS MET:DIN 933,TENSILE STRENGHT:110,000PSI MM
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
head_major_diameter13.0 MILLIMETERS NOMINAL MM
part_name_assigned_by_controlling_agencyBOLT,MACHINE
NSN5306-01-668-0071
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 91280A981 · 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: 5.3 MILLIMETERS NOMINAL MM
•
THREAD LENGTH: 90.0 MILLIMETERS NOMINAL MM
•
HARDNESS RATING: 12.0 ROCKWELL C NOMINAL OVERALL
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
GRIP LENGTH: 90.0 MILLIMETERS NOMINAL MM
•
SURFACE TREATMENT: ZINC OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT5.3 MILLIMETERS NOMINAL MM
THREAD LENGTH90.0 MILLIMETERS NOMINAL MM
HARDNESS RATING12.0 ROCKWELL C NOMINAL OVERALL
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH90.0 MILLIMETERS NOMINAL MM
SPECIAL FEATURESTHREAD SIZE:M8,THREAD PITCH:1.25MM,FASTENER STRENGHT:CLASS 8.8,THREAD SPACING: COARSE,THREAD FIT: CLASS 6H,DRIVE STYLE:EXTERAL HEX,SPECIFICATIONS MET:DIN 933,TENSILE STRENGHT:110,000PSI MM
SURFACE TREATMENTZINC OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYBOLT,MACHINE
MATERIALSTEEL OVERALL
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 91280A981?
91280A981 is a BOLT,MACHINE.
What is the NSN for 91280A981?
91280A981 is cataloged in the U.S. Government catalog under NSN 5306-01-668-0071. This indicates validated use in U.S. government and defense supply chains.
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