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AIC558-6D55 — BOLT,SHEAR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

AIC558-6D55: BOLT,SHEAR.

The BOLT,SHEAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP H11 OVERALL, head_style: DOUBLE HEXAGON, grip_length: 3.426 INCHES MINIMUM AND 3.446 INCHES MAXIMUM IN, head_height: 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.3733 INCHES MINIMUM AND 0.3742 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-135-0111, 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
AIC558-6D55
NSN: 5306-01-135-0111
FSC: 5306 — Bolts
CAGE: 06725 — SPS TECHNOLOGIES, LLC DBA AIR INDUSTRIES COMPANY DIV AIR INDUSTRIES COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP H11 OVERALL
head_styleDOUBLE HEXAGON
grip_length3.426 INCHES MINIMUM AND 3.446 INCHES MAXIMUM IN
head_height0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.3733 INCHES MINIMUM AND 0.3742 INCHES MAXIMUM IN
thread_length0.471 INCHES MINIMUM AND 0.538 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES GRIP
fastener_length3.917 INCHES MINIMUM AND 3.964 INCHES MAXIMUM IN
hardness_rating46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OR CADMIUM AND CHROMATE OVERALL
NSN5306-01-135-0111
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AIC558-6D55 · 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
•
SURFACE FINISH: 32.0 MICROINCHES GRIP
•
HEAD HEIGHT: 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
•
FASTENER LENGTH: 3.917 INCHES MINIMUM AND 3.964 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: NAS672 ASSN STD 1ST TREATMENT RESPONSE OR MIL-C-8837 TY 2,CL 2 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.471 INCHES MINIMUM AND 0.538 INCHES MAXIMUM IN
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
•
SHANK UNTHREADED HOLE DIAMETER: 0.101 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES GRIP
HEAD HEIGHT0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
FASTENER LENGTH3.917 INCHES MINIMUM AND 3.964 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNAS672 ASSN STD 1ST TREATMENT RESPONSE OR MIL-C-8837 TY 2,CL 2 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
THREAD LENGTH0.471 INCHES MINIMUM AND 0.538 INCHES MAXIMUM IN
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
SHANK UNTHREADED HOLE DIAMETER0.101 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEDOUBLE HEXAGON
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 4
VCD004-6-55FSReference document
Same NSN cross-reference
Reference document — Secondary reference
H408F6D55Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
BM17035-6-55Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
GB511EB6D55Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AIC558-6D55?
AIC558-6D55 is a BOLT,SHEAR.
What parts can replace AIC558-6D55?
There are 4 known substitutes for AIC558-6D55: VCD004-6-55FS, H408F6D55, BM17035-6-55 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AIC558-6D55?
AIC558-6D55 is cataloged in the U.S. Government catalog under NSN 5306-01-135-0111. 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.