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PartsTable / COMPONENT / AN4-32
AN4-32 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The TERMINAL,LUG is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OR COPPER OVERALL EXCEPT INSULATION, head_style: HEXAGON, grip_length: 2.812 INCHES NOMINAL IN, head_height: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN, thread_class: 3A A, overall_width: 0.687 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-151-1139, 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
AN4-32
NSN: 5306-00-151-1139
FSC: 5306
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialCOPPER ALLOY OR COPPER OVERALL EXCEPT INSULATION
head_styleHEXAGON
grip_length2.812 INCHES NOMINAL IN
head_height0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
thread_class3A A
overall_width0.687 INCHES IN
thread_length0.469 INCHES MINIMUM IN
overall_length1.500 INCHES IN
fastener_length3.281 INCHES NOMINAL IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
basic_shape_styleCRIMP
NSN5306-00-151-1139
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AN4-32 · 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: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
•
MINIMUM TENSILE STRENGTH: 125000 POUNDS PER SQUARE INCH LBS
•
WIDTH BETWEEN FLATS: 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
•
FASTENER LENGTH: 3.281 INCHES NOMINAL IN
•
HEAD STYLE: HEXAGON
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
THREAD SERIES DESIGNATOR: UNF
•
THREAD CLASS: 3A A
TECHNICAL CHARACTERISTICS (FLIS)
HEAD HEIGHT0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH LBS
WIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
FASTENER LENGTH3.281 INCHES NOMINAL IN
HEAD STYLEHEXAGON
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD SERIES DESIGNATORUNF
THREAD CLASS3A A
SHANK UNTHREADED HOLE DIAMETER0.076 INCHES MINIMUM FIRST HOLE IN
MATERIALSTEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
AN4-32Interchangeable
interchangeable cross-reference
interchangeable
G221362-12Interchangeable
interchangeable cross-reference
interchangeable
BLM4S26Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN4-32?
AN4-32 is a TERMINAL,LUG.
What parts can replace AN4-32?
There are 3 known substitutes for AN4-32: AN4-32, G221362-12, BLM4S26. Substitute compatibility should be verified for your specific system.
What is the NSN for AN4-32?
AN4-32 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-151-1139. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026