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PartsTable / COMPONENT / MS16556-64
MS16556-64 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, first_end_style: CHAMFERED, second_end_style: RADIUS, pin_overall_length: 2.250 INCHES NOMINAL IN, pin_overall_diameter: 0.3759 INCHES MINIMUM AND 0.3761 INCHES MAXIMUM IN, first_end_taper_length: 0.438 INCHES MINIMUM AND 0.516 INCHES MAXIMUM 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 5315-01-264-1545, 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
MS16556-64
NSN: 5315-01-264-1545
FSC: 5315
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OVERALL
first_end_styleCHAMFERED
second_end_styleRADIUS
pin_overall_length2.250 INCHES NOMINAL IN
pin_overall_diameter0.3759 INCHES MINIMUM AND 0.3761 INCHES MAXIMUM IN
first_end_taper_length0.438 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
second_end_corner_radius0.047 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
second_end_relationship_with_first_endNOT IDENTICAL
NSN5315-01-264-1545
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS16556-64 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SECOND END STYLE: RADIUS
•
FIRST END STYLE: CHAMFERED
•
MATERIAL: STEEL OVERALL
•
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
•
SECOND END CORNER RADIUS: 0.047 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 2.250 INCHES NOMINAL IN
•
FIRST END TAPER LENGTH: 0.438 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
•
PIN OVERALL DIAMETER: 0.3759 INCHES MINIMUM AND 0.3761 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SECOND END STYLERADIUS
FIRST END STYLECHAMFERED
MATERIALSTEEL OVERALL
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
SECOND END CORNER RADIUS0.047 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
PIN OVERALL LENGTH2.250 INCHES NOMINAL IN
FIRST END TAPER LENGTH0.438 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
PIN OVERALL DIAMETER0.3759 INCHES MINIMUM AND 0.3761 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
B94.19 TABLE 4Interchangeable
interchangeable cross-reference
interchangeable
ASME B94.19Interchangeable
interchangeable cross-reference
interchangeable
305-18Interchangeable
interchangeable cross-reference
interchangeable
914109Interchangeable
interchangeable cross-reference
interchangeable
2352T2Interchangeable
interchangeable cross-reference
interchangeable
LOCTITE SUPERFLEX BLUE RTVInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS16556-64?
MS16556-64 is a PIN,STRAIGHT,HEADLESS.
What parts can replace MS16556-64?
There are 11 known substitutes for MS16556-64: B94.19 TABLE 4, ASME B94.19, 305-18 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS16556-64?
MS16556-64 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-264-1545. 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