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PartsTable / COMPONENT / 3M33-4-4A
3M33-4-4A ✓ 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,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, grip_length: 0.250 INCHES NOMINAL IN, head_height: 0.156 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM IN, thread_length: 0.469 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 5306-00-619-5202, 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
3M33-4-4A
NSN: 5306-00-619-5202
FSC: 5306
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
head_styleHEXAGON
grip_length0.250 INCHES NOMINAL IN
head_height0.156 INCHES NOMINAL IN
thread_class3A A
grip_diameter0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM IN
thread_length0.469 INCHES MINIMUM IN
surface_finish32.0 MICROINCHES GRIP
fastener_length0.719 INCHES NOMINAL IN
special_featuresTENSILE STRENGTH SET AT ROOM TEMPERATURE NOT ABOVE 1200 DEG F DEGF
thread_directionRIGHT-HAND
width_between_flats0.438 INCHES NOMINAL IN
nominal_thread_diameter0.250 INCHES IN
NSN5306-00-619-5202
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3M33-4-4A · 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 DIRECTION: RIGHT-HAND
•
SURFACE FINISH: 32.0 MICROINCHES GRIP
•
GRIP LENGTH: 0.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD SERIES DESIGNATOR: UNF
•
WIDTH BETWEEN FLATS: 0.438 INCHES NOMINAL IN
•
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
SPECIAL FEATURESTENSILE STRENGTH SET AT ROOM TEMPERATURE NOT ABOVE 1200 DEG F DEGF
SURFACE FINISH32.0 MICROINCHES GRIP
GRIP LENGTH0.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD SERIES DESIGNATORUNF
WIDTH BETWEEN FLATS0.438 INCHES NOMINAL IN
HEAD STYLEHEXAGON
THREAD CLASS3A A
FASTENER LENGTH0.719 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
CL144S5101-582970PC1311Interchangeable
interchangeable cross-reference
interchangeable
MX243197-1PC2570Interchangeable
interchangeable cross-reference
interchangeable
CV9S5103-011PC1310Interchangeable
interchangeable cross-reference
interchangeable
3M33Interchangeable
interchangeable cross-reference
interchangeable
886PC33Interchangeable
interchangeable cross-reference
interchangeable
7100002398Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3M33-4-4A?
3M33-4-4A is a BOLT,CLOSE TOLERANCE.
What parts can replace 3M33-4-4A?
There are 6 known substitutes for 3M33-4-4A: CL144S5101-582970PC1311, MX243197-1PC2570, CV9S5103-011PC1310 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3M33-4-4A?
3M33-4-4A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-619-5202. 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