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MS16555-305 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MS16555-305: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, shear_strength: 800 DOUBLE POUND, first_end_style: CHAMFERED, hardness_rating: 58.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM OVERALL, surface_treatment: PHOSPHATE OVERALL, pin_overall_length: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-481-2639, 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
MS16555-305
NSN: 5315-01-481-2639
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OVERALL
shear_strength800 DOUBLE POUND
first_end_styleCHAMFERED
hardness_rating58.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM OVERALL
surface_treatmentPHOSPHATE OVERALL
pin_overall_length0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
pin_overall_diameter0.0626 INCHES MINIMUM AND 0.0628 INCHES MAXIMUM IN
first_end_taper_angle20.0 DEGREES MINIMUM AND 30.0 DEGREES MAXIMUM
first_end_taper_length0.008 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
material_document_and_classificationASTMA29 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
surface_treatment_document_and_classificationDOD-P-16232 TY Z CL 2 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-01-481-2639
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS16555-305 · 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
•
FIRST END TAPER LENGTH: 0.008 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: DOD-P-16232 TY Z CL 2 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
FIRST END STYLE: CHAMFERED
•
HARDNESS RATING: 58.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTMA29 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
FIRST END TAPER ANGLE: 20.0 DEGREES MINIMUM AND 30.0 DEGREES MAXIMUM
•
PIN OVERALL DIAMETER: 0.0626 INCHES MINIMUM AND 0.0628 INCHES MAXIMUM IN
•
PIN OVERALL LENGTH: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FIRST END TAPER LENGTH0.008 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDOD-P-16232 TY Z CL 2 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
FIRST END STYLECHAMFERED
HARDNESS RATING58.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTMA29 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
FIRST END TAPER ANGLE20.0 DEGREES MINIMUM AND 30.0 DEGREES MAXIMUM
PIN OVERALL DIAMETER0.0626 INCHES MINIMUM AND 0.0628 INCHES MAXIMUM IN
PIN OVERALL LENGTH0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
SURFACE TREATMENTPHOSPHATE OVERALL
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES 1
400-024-ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS16555-305?
MS16555-305 is a PIN,STRAIGHT,HEADLESS.
What parts can replace MS16555-305?
There is 1 known substitute for MS16555-305: 400-024-A. Substitute compatibility should be verified for your specific system.
What is the NSN for MS16555-305?
MS16555-305 is cataloged in the U.S. Government catalog under NSN 5315-01-481-2639. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.