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91253A876 — BOLT,INTERNAL WRENCHING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

91253A876: BOLT,INTERNAL WRENCHING.

The BOLT,INTERNAL WRENCHING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_length: 0.324 INCHES NOMINAL IN, head_diameter: 1.188 INCHES NOMINAL IN, thread_length: 2.18 INCHES NOMINAL IN, fastener_length: 2.500 INCHES NOMINAL IN, internal_drive_style: HEXAGON. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-691-4010, 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
91253A876
NSN: 5306-01-691-4010
FSC: 5306 — Bolts
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_length0.324 INCHES NOMINAL IN
head_diameter1.188 INCHES NOMINAL IN
thread_length2.18 INCHES NOMINAL IN
fastener_length2.500 INCHES NOMINAL IN
internal_drive_styleHEXAGON
end_item_identification2330-01-669-7762
nominal_thread_diameter0.625 INCHES IN
thread_quantity_per_inch18
part_name_assigned_by_controlling_agencyFLAT-HEAD SOCKET CAP SCREW
NSN5306-01-691-4010
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 91253A876 · 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
•
FASTENER LENGTH: 2.500 INCHES NOMINAL IN
•
THREAD LENGTH: 2.18 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
HEAD LENGTH: 0.324 INCHES NOMINAL IN
•
INTERNAL DRIVE STYLE: HEXAGON
•
THREAD QUANTITY PER INCH: 18
TECHNICAL CHARACTERISTICS
FASTENER LENGTH2.500 INCHES NOMINAL IN
THREAD LENGTH2.18 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.625 INCHES IN
HEAD LENGTH0.324 INCHES NOMINAL IN
INTERNAL DRIVE STYLEHEXAGON
PART NAME ASSIGNED BY CONTROLLING AGENCYFLAT-HEAD SOCKET CAP SCREW
END ITEM IDENTIFICATION2330-01-669-7762
THREAD QUANTITY PER INCH18
MATERIALSTEEL OVERALL
HEAD DIAMETER1.188 INCHES NOMINAL 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 91253A876?
91253A876 is a BOLT,INTERNAL WRENCHING.
What is the NSN for 91253A876?
91253A876 is cataloged in the U.S. Government catalog under NSN 5306-01-691-4010. 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.