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3M1277E3D8AL — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3M1277E3D8AL: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include thread_class: 3A A, grip_diameter: 0.202 INCHES MAXIMUM IN, end_item_identification: FIGHTER AIRCRAFT - FIRST (F18 E/F), nominal_thread_diameter: 0.190 INCHES IN, thread_quantity_per_inch: 32, thread_series_designator: UNIFIED NATIONAL JOINT FINE (UNJF). This part is cataloged in the U.S.

Government catalog under NSN 5306-01-587-2101, 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
3M1277E3D8AL
NSN: 5306-01-587-2101
FSC: 5306 — Bolts
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
thread_class3A A
grip_diameter0.202 INCHES MAXIMUM IN
end_item_identificationFIGHTER AIRCRAFT - FIRST (F18 E/F)
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF)
criticality_code_justificationAGAV
NSN5306-01-587-2101
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3M1277E3D8AL · 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
•
CRITICALITY CODE JUSTIFICATION: AGAV
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
GRIP DIAMETER: 0.202 INCHES MAXIMUM IN
•
THREAD CLASS: 3A A
•
THREAD QUANTITY PER INCH: 32
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF)
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONAGAV
NOMINAL THREAD DIAMETER0.190 INCHES IN
GRIP DIAMETER0.202 INCHES MAXIMUM IN
THREAD CLASS3A A
END ITEM IDENTIFICATIONFIGHTER AIRCRAFT - FIRST (F18 E/F)
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)
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)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 3M1277E3D8AL?
3M1277E3D8AL is a BOLT,CLOSE TOLERANCE.
What is the NSN for 3M1277E3D8AL?
3M1277E3D8AL is cataloged in the U.S. Government catalog under NSN 5306-01-587-2101. 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.