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Technical Data Sheet

A51M42543-11 — Technical Data Sheet

✓ 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,INTERNALLY RELIEVED BODY is a the manufacturer industrial component. Key specifications include material: STEEL COMP D6AC OVERALL, head_style: ROUND W/WRENCH FLATS, head_height: 0.063 INCHES NOMINAL IN, thread_class: 3A A, head_diameter: 0.750 INCHES NOMINAL IN, thread_length: 0.241 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 5306-00-004-7044, 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
A51M42543-11
NSN: 5306-00-004-7044
FSC: 5306
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP D6AC OVERALL
head_styleROUND W/WRENCH FLATS
head_height0.063 INCHES NOMINAL IN
thread_class3A A
head_diameter0.750 INCHES NOMINAL IN
thread_length0.241 INCHES MINIMUM IN
fastener_length2.137 INCHES NOMINAL IN
shoulder_length1.792 INCHES NOMINAL IN
style_designatorCONCENTRIC HOLE UNTHREADED
thread_directionRIGHT-HAND
shoulder_diameter0.4976 INCHES MINIMUM AND 0.4981 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
NSN5306-00-004-7044
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A51M42543-11 · 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 STYLE: ROUND W/WRENCH FLATS
FASTENER LENGTH: 2.137 INCHES NOMINAL IN
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER: 2.012 INCHES NOMINAL FIRST HOLE IN
SHANK UNTHREADED HOLE DIAMETER: 0.072 INCHES MINIMUM AND 0.077 INCHES MAXIMUM FIRST HOLE IN
HEAD DIAMETER: 0.750 INCHES NOMINAL IN
THREAD DIRECTION: RIGHT-HAND
CONCENTRIC HOLE DEPTH: 0.320 INCHES NOMINAL IN
HEAD HEIGHT: 0.063 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HEAD STYLEROUND W/WRENCH FLATS
FASTENER LENGTH2.137 INCHES NOMINAL IN
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER2.012 INCHES NOMINAL FIRST HOLE IN
SHANK UNTHREADED HOLE DIAMETER0.072 INCHES MINIMUM AND 0.077 INCHES MAXIMUM FIRST HOLE IN
HEAD DIAMETER0.750 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
CONCENTRIC HOLE DEPTH0.320 INCHES NOMINAL IN
HEAD HEIGHT0.063 INCHES NOMINAL IN
THREAD CLASS3A A
WIDTH BETWEEN FLATS0.552 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
1145Same_fsc
same_fsc cross-reference
same_fsc
5220Same_fsc
Intel Xeon Gold 5220 18C 2.2G 125W 2933Mhz
same_fsc
5305L20-003Same_fsc
same_fsc cross-reference
same_fsc
88T52Same_fsc
Dell 240GB Enterprise 6G 2.5inch Ri SATA SSD
same_fsc
B6812ASame_fsc
same_fsc cross-reference
same_fsc
AN178H52Same_fsc
same_fsc cross-reference
same_fsc
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A51M42543-11?
A51M42543-11 is a BOLT,INTERNALLY RELIEVED BODY.
What parts can replace A51M42543-11?
There are 12 known substitutes for A51M42543-11: 1145, 5220, 5305L20-003 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A51M42543-11?
A51M42543-11 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-004-7044. This indicates validated use in U.S. government and defense supply chains.
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