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Technical Data Sheet
PartsTable / COMPONENT / MS20073-06-21
MS20073-06-21 ✓ 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,MACHINE is a the manufacturer industrial component. Key specifications include hole_type: DRILLED, head_style: HEXAGON, grip_length: 1.484 INCHES MINIMUM AND 1.516 INCHES MAXIMUM IN, head_height: 0.266 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN, thread_class: 3A A, hole_diameter: 0.070 INCHES NOMINAL 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 5306-00-087-3927, 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
MS20073-06-21
NSN: 5306-00-087-3927
FSC: 5306
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL
hole_typeDRILLED
head_styleHEXAGON
grip_length1.484 INCHES MINIMUM AND 1.516 INCHES MAXIMUM IN
head_height0.266 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
thread_class3A A
hole_diameter0.070 INCHES NOMINAL IN
hole_quantity6
thread_length0.640 INCHES MINIMUM AND 0.717 INCHES MAXIMUM IN
fastener_length2.156 INCHES MINIMUM AND 2.203 INCHES MAXIMUM IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
NSN5306-00-087-3927
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS20073-06-21 · 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
•
WIDTH BETWEEN FLATS: 0.554 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
HEAD HEIGHT: 0.266 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
•
GRIP LENGTH: 1.484 INCHES MINIMUM AND 1.516 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
THREAD QUANTITY PER INCH: 24
•
HOLE QUANTITY: 6
•
FASTENER LENGTH: 2.156 INCHES MINIMUM AND 2.203 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH BETWEEN FLATS0.554 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
HEAD HEIGHT0.266 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
GRIP LENGTH1.484 INCHES MINIMUM AND 1.516 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
THREAD QUANTITY PER INCH24
HOLE QUANTITY6
FASTENER LENGTH2.156 INCHES MINIMUM AND 2.203 INCHES MAXIMUM IN
THREAD CLASS3A A
HOLE TYPEDRILLED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
AN182-26Upgraded Successor
successor cross-reference
successor
B6812Upgraded Successor
successor cross-reference
successor
AN182H26Upgraded Successor
successor cross-reference
successor
AN173-10Upgraded Successor
successor cross-reference
successor
83-10Upgraded Successor
successor cross-reference
successor
NASM6812Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS20073-06-21?
MS20073-06-21 is a BOLT,MACHINE.
What parts can replace MS20073-06-21?
There are 11 known substitutes for MS20073-06-21: AN182-26, B6812, AN182H26 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS20073-06-21?
MS20073-06-21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-087-3927. 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