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Technical Data Sheet
PartsTable / COMPONENT / MS16556-602
MS16556-602 ✓ 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 COMP 410 OR STEEL COMP 416 OVERALL, shear_strength: 610 DOUBLE POUND, surface_finish: 16.0 MICROINCHES OUTSIDE DIAMETER, first_end_style: CHAMFERED, hardness_rating: 36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL, second_end_style: SQUARE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-848-7829, 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
MS16556-602
NSN: 5315-00-848-7829
FSC: 5315
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 410 OR STEEL COMP 416 OVERALL
shear_strength610 DOUBLE POUND
surface_finish16.0 MICROINCHES OUTSIDE DIAMETER
first_end_styleCHAMFERED
hardness_rating36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
second_end_styleSQUARE
surface_treatmentPASSIVATE OVERALL
pin_overall_length0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
pin_overall_diameter0.0634 INCHES MINIMUM AND 0.0636 INCHES MAXIMUM IN
first_end_taper_angle4.0 DEGREES MINIMUM AND 16.0 DEGREES MAXIMUM
first_end_taper_length0.058 INCHES NOMINAL IN
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OVERALL
NSN5315-00-848-7829
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS16556-602 · 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
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
•
FIRST END TAPER ANGLE: 4.0 DEGREES MINIMUM AND 16.0 DEGREES MAXIMUM
•
FIRST END STYLE: CHAMFERED
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
MATERIAL: STEEL COMP 410 OR STEEL COMP 416 OVERALL
•
PIN OVERALL LENGTH: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
FIRST END TAPER ANGLE4.0 DEGREES MINIMUM AND 16.0 DEGREES MAXIMUM
FIRST END STYLECHAMFERED
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 410 OR STEEL COMP 416 OVERALL
PIN OVERALL LENGTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
SECOND END STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
1543854Interchangeable
interchangeable cross-reference
interchangeable
1531217Interchangeable
interchangeable cross-reference
interchangeable
D14-12Interchangeable
interchangeable cross-reference
interchangeable
D5D750Interchangeable
interchangeable cross-reference
interchangeable
D5-750Interchangeable
interchangeable cross-reference
interchangeable
717124436603Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS16556-602?
MS16556-602 is a PIN,STRAIGHT,HEADLESS.
What parts can replace MS16556-602?
There are 12 known substitutes for MS16556-602: 1543854, 1531217, D14-12 and 9 more. Substitute compatibility should be verified for your specific system.
Is MS16556-602 still available?
MS16556-602 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