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PartsTable / COMPONENT / NASM3 THRU 20
NASM3 THRU 20 ✓ 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 material: STEEL COMP 431 OVERALL, hole_type: DRILLED, head_style: HEXAGON, grip_length: 2.922 INCHES MINIMUM AND 2.954 INCHES MAXIMUM IN, head_height: 0.453 INCHES MINIMUM AND 0.485 INCHES MAXIMUM IN, thread_class: 3A A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-584-7897, 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
NASM3 THRU 20
NSN: 5306-00-584-7897
FSC: 5306
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL COMP 431 OVERALL
hole_typeDRILLED
head_styleHEXAGON
grip_length2.922 INCHES MINIMUM AND 2.954 INCHES MAXIMUM IN
head_height0.453 INCHES MINIMUM AND 0.485 INCHES MAXIMUM IN
thread_class3A A
hole_diameter0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
hole_quantity1
thread_length1.218 INCHES MINIMUM AND 1.297 INCHES MAXIMUM IN
fastener_length4.172 INCHES MINIMUM AND 4.219 INCHES MAXIMUM IN
hardness_rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
NSN5306-00-584-7897
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: NASM3 THRU 20 · 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 SERIES DESIGNATOR: UNF
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
•
HEAD HEIGHT: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
•
HOLE CONFIGURATION STYLE: HEXAGON FLATS
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
GRIP LENGTH: 0.688 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 20
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNF
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
HOLE CONFIGURATION STYLEHEXAGON FLATS
MATERIALSTEEL CORROSION RESISTING OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
GRIP LENGTH0.688 INCHES NOMINAL IN
THREAD QUANTITY PER INCH20
THREAD LENGTH0.656 INCHES MINIMUM IN
HOLE TYPEDRILLED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
AN12-43AInterchangeable
interchangeable cross-reference
interchangeable
NASM3THRU20Interchangeable
interchangeable cross-reference
interchangeable
5306005902700Interchangeable
interchangeable cross-reference
interchangeable
6253R300PC95Interchangeable
interchangeable cross-reference
interchangeable
805136Interchangeable
interchangeable cross-reference
interchangeable
AN8-20AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NASM3 THRU 20?
NASM3 THRU 20 is a BOLT,MACHINE.
What parts can replace NASM3 THRU 20?
There are 8 known substitutes for NASM3 THRU 20: AN12-43A, NASM3THRU20, 5306005902700 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NASM3 THRU 20?
NASM3 THRU 20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-584-7897. 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