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PartsTable / COMPONENT / 5306H23-006-3
5306H23-006-3 ✓ 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 BOLT,EXTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8740 OVERALL, head_style: DEE, head_height: 0.160 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.750 INCHES NOMINAL IN, thread_length: 0.460 INCHES MINIMUM 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 5306-00-637-8805, 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
5306H23-006-3
NSN: 5306-00-637-8805
FSC: 5306
CAGE: 81996 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 8740 OVERALL
head_styleDEE
head_height0.160 INCHES NOMINAL IN
thread_class3A A
head_diameter0.750 INCHES NOMINAL IN
thread_length0.460 INCHES MINIMUM IN
fastener_length1.030 INCHES NOMINAL IN
hardness_rating28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
nominal_thread_diameter0.375 INCHES IN
first_diameter_from_head0.401 INCHES NOMINAL IN
thread_quantity_per_inch24
NSN5306-00-637-8805
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5306H23-006-3 · 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
•
THREAD QUANTITY PER INCH: 24
•
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER: 0.091 INCHES NOMINAL FIRST HOLE IN
•
THREAD SERIES DESIGNATOR: UNF
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY: 2
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
FIRST DIAMETER FROM HEAD: 0.401 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH24
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER0.091 INCHES NOMINAL FIRST HOLE IN
THREAD SERIES DESIGNATORUNF
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES IN
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY2
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FIRST DIAMETER FROM HEAD0.401 INCHES NOMINAL IN
MATERIALSTEEL COMP 8740 OVERALL
SECOND DIAMETER FROM HEAD0.316 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
144135Interchangeable
interchangeable cross-reference
interchangeable
68965Interchangeable
interchangeable cross-reference
interchangeable
1656Interchangeable
interchangeable cross-reference
interchangeable
137AY77Interchangeable
interchangeable cross-reference
interchangeable
137AY77-90Interchangeable
interchangeable cross-reference
interchangeable
DISPATCHInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5306H23-006-3?
5306H23-006-3 is a BOLT,EXTERNALLY RELIEVED BODY.
What parts can replace 5306H23-006-3?
There are 7 known substitutes for 5306H23-006-3: 144135, 68965, 1656 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5306H23-006-3?
5306H23-006-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-637-8805. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026