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A0L4164-131 — BOLT,INTERNAL WRENCHING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

A0L4164-131: BOLT,INTERNAL WRENCHING.

The BOLT,INTERNAL WRENCHING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_height: 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, thread_length: 0.453 INCHES MINIMUM AND 0.484 INCHES MAXIMUM IN, fastener_length: 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-028-0051, 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
A0L4164-131
NSN: 5306-01-028-0051
FSC: 5306 — Bolts
CAGE: 57472 — ALL MANUFACTURERS, INC. DBA ALLIED HARBOR AEROSPACE FASTENERS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_height0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
thread_length0.453 INCHES MINIMUM AND 0.484 INCHES MAXIMUM IN
fastener_length0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
width_across_flats0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.138 INCHES IN
minimum_tensile_strength170000 POUNDS PER SQUARE INCH LBS
NSN5306-01-028-0051
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A0L4164-131 · 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
•
WIDTH ACROSS FLATS: 0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.453 INCHES MINIMUM AND 0.484 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
HEAD HEIGHT0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
FASTENER LENGTH0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.453 INCHES MINIMUM AND 0.484 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.138 INCHES IN
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
MINIMUM TENSILE STRENGTH170000 POUNDS PER SQUARE INCH LBS
INTERNAL DRIVE STYLEHEXAGON
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)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A0L4164-131?
A0L4164-131 is a BOLT,INTERNAL WRENCHING.
What is the NSN for A0L4164-131?
A0L4164-131 is cataloged in the U.S. Government catalog under NSN 5306-01-028-0051. 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.