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A111-4G — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

A111-4G: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, grip_length: 0.400 INCHES MINIMUM AND 0.513 INCHES MAXIMUM IN, head_height: 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN, thread_class: 2A A, grip_diameter: 0.3118 INCHES MINIMUM AND 0.3123 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-193-9486, 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
A111-4G
NSN: 5306-00-193-9486
FSC: 5306 — Bolts
CAGE: K7766 — BSI STANDARDS LIMITED (GBR)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
grip_length0.400 INCHES MINIMUM AND 0.513 INCHES MAXIMUM IN
head_height0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
thread_class2A A
grip_diameter0.3118 INCHES MINIMUM AND 0.3123 INCHES MAXIMUM IN
thread_length0.537 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN
fastener_length1.050 INCHES MINIMUM AND 1.090 INCHES MAXIMUM IN
special_featuresIDENTIFICATION DISK ON TOP OF HEAD 0.490 IN. DIA,0.030 IN. DEPTH IN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_between_flats0.493 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
NSN5306-00-193-9486
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A111-4G · 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: 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.050 INCHES MINIMUM AND 1.090 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.537 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: A.111,FSCM K7766 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
GRIP LENGTH: 0.400 INCHES MINIMUM AND 0.513 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
FASTENER LENGTH1.050 INCHES MINIMUM AND 1.090 INCHES MAXIMUM IN
THREAD LENGTH0.537 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONA.111,FSCM K7766 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.400 INCHES MINIMUM AND 0.513 INCHES MAXIMUM IN
WIDTH BETWEEN FLATS0.493 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
GRIP DIAMETER0.3118 INCHES MINIMUM AND 0.3123 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-004-7044 5306-00-007-6129 5306-00-008-7899 5306-00-009-4739 5306-00-118-7332 5306-00-151-1777 5306-00-255-4507 5306-01-101-2459
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 A111-4G?
A111-4G is a BOLT,CLOSE TOLERANCE.
What is the NSN for A111-4G?
A111-4G is cataloged in the U.S. Government catalog under NSN 5306-00-193-9486. 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.