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3M1275E4D8A — BOLT,SHEAR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3M1275E4D8A: BOLT,SHEAR.

The BOLT,SHEAR is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 0.500 INCHES NOMINAL IN, thread_class: UNJF-3A A, grip_diameter: 0.265 INCHES NOMINAL IN, head_diameter: 0.502 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-598-0785, 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
3M1275E4D8A
NSN: 5306-01-598-0785
FSC: 5306 — Bolts
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialNICKEL ALLOY 718 OVERALL
head_styleFLAT COUNTERSUNK
grip_length0.500 INCHES NOMINAL IN
thread_classUNJF-3A A
grip_diameter0.265 INCHES NOMINAL IN
head_diameter0.502 INCHES NOMINAL IN
thread_length0.425 INCHES NOMINAL IN
fastener_length0.925 INCHES NOMINAL IN
thread_directionRIGHT-HAND
countersink_angle100.0 DEGREES NOMINAL
nominal_thread_diameter0.250 INCHES IN
minimum_tensile_strength125000 POUNDS PER SQUARE INCH LBS
NSN5306-01-598-0785
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3M1275E4D8A · 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: 0.925 INCHES NOMINAL IN
•
THREAD LENGTH: 0.425 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
GRIP LENGTH: 0.500 INCHES NOMINAL IN
•
GRIP DIAMETER: 0.265 INCHES NOMINAL IN
•
MINIMUM TENSILE STRENGTH: 125000 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS
FASTENER LENGTH0.925 INCHES NOMINAL IN
THREAD LENGTH0.425 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.500 INCHES NOMINAL IN
GRIP DIAMETER0.265 INCHES NOMINAL IN
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH LBS
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
THREAD CLASSUNJF-3A A
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 1
11857E4D8ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3M1275E4D8A?
3M1275E4D8A is a BOLT,SHEAR.
What parts can replace 3M1275E4D8A?
There is 1 known substitute for 3M1275E4D8A: 11857E4D8A. Substitute compatibility should be verified for your specific system.
What is the NSN for 3M1275E4D8A?
3M1275E4D8A is cataloged in the U.S. Government catalog under NSN 5306-01-598-0785. 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.