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Technical Data Sheet
PartsTable / COMPONENT / 1845053
1845053 ✓ 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 OVERALL, head_style: HEXAGON, head_height: 0.219 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.688 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN, fastener_length: 7.969 INCHES MINIMUM AND 8.000 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-286-3962, 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
1845053
NSN: 5306-00-286-3962
FSC: 5306
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.219 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
thread_class2A A
thread_length0.688 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN
fastener_length7.969 INCHES MINIMUM AND 8.000 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
width_between_flats0.427 INCHES MINIMUM AND 0.442 INCHES MAXIMUM IN
nominal_thread_diameter0.312 INCHES IN
first_diameter_from_head0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
thread_quantity_per_inch18
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5306-00-286-3962
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1845053 · 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
•
FIRST DIAMETER FROM HEAD: 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER: 7.250 INCHES NOMINAL IN
•
FASTENER LENGTH: 7.969 INCHES MINIMUM AND 8.000 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.219 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
•
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER: 0.250 INCHES NOMINAL IN
•
THREAD CLASS: 2A A
TECHNICAL CHARACTERISTICS (FLIS)
FIRST DIAMETER FROM HEAD0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER7.250 INCHES NOMINAL IN
FASTENER LENGTH7.969 INCHES MINIMUM AND 8.000 INCHES MAXIMUM IN
HEAD HEIGHT0.219 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.250 INCHES NOMINAL IN
THREAD CLASS2A A
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY2
NOMINAL THREAD DIAMETER0.312 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
990-10MInterchangeable
interchangeable cross-reference
interchangeable
756-7198-11Interchangeable
interchangeable cross-reference
interchangeable
7431828P2Interchangeable
interchangeable cross-reference
interchangeable
383720Interchangeable
interchangeable cross-reference
interchangeable
396462Interchangeable
interchangeable cross-reference
interchangeable
4504147Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1845053?
1845053 is a BOLT,EXTERNALLY RELIEVED BODY.
What parts can replace 1845053?
There are 13 known substitutes for 1845053: 990-10M, 756-7198-11, 7431828P2 and 10 more. Substitute compatibility should be verified for your specific system.
Is 1845053 still available?
1845053 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026