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Technical Data Sheet
PartsTable / COMPONENT / 544-0280-002
544-0280-002 ✓ 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,SHOULDER,HEADLESS is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360 OVERALL, shank_length: 0.155 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN, overall_length: 0.499 INCHES MINIMUM AND 0.509 INCHES MAXIMUM IN, shank_diameter: 0.1244 INCHES MINIMUM AND 0.1249 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES SHOULDER OUTSIDE DIAMETER, first_end_style: POINTED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-441-0644, 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
544-0280-002
NSN: 5315-00-441-0644
FSC: 5315
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OVERALL
shank_length0.155 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN
overall_length0.499 INCHES MINIMUM AND 0.509 INCHES MAXIMUM IN
shank_diameter0.1244 INCHES MINIMUM AND 0.1249 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES SHOULDER OUTSIDE DIAMETER
first_end_stylePOINTED
second_end_styleCOUNTERBORED W/O THRU HOLE
style_designatorSHOULDER
shoulder_diameter0.1863 INCHES MINIMUM AND 0.1867 INCHES MAXIMUM IN
surface_treatmentOXIDE OVERALL
first_end_locationSHOULDER END
first_end_taper_angle28.0 DEGREES MINIMUM AND 32.0 DEGREES MAXIMUM
NSN5315-00-441-0644
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 544-0280-002 · 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 RELATIONSHIP WITH FIRST END: NOT IDENTICAL
•
FIRST END LOCATION: SHOULDER END
•
FIRST END TAPER ANGLE: 28.0 DEGREES MINIMUM AND 32.0 DEGREES MAXIMUM
•
STYLE DESIGNATOR: SHOULDER
•
SURFACE FINISH: 32.0 MICROINCHES SHOULDER OUTSIDE DIAMETER
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: 580-0034-00- CAGEC 13499 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
SURFACE TREATMENT: OXIDE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.499 INCHES MINIMUM AND 0.509 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
FIRST END LOCATIONSHOULDER END
FIRST END TAPER ANGLE28.0 DEGREES MINIMUM AND 32.0 DEGREES MAXIMUM
STYLE DESIGNATORSHOULDER
SURFACE FINISH32.0 MICROINCHES SHOULDER OUTSIDE DIAMETER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION580-0034-00- CAGEC 13499 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTOXIDE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,HALF HARD OR FULL HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 360 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
121458Interchangeable
interchangeable cross-reference
interchangeable
WA39Interchangeable
interchangeable cross-reference
interchangeable
119296Interchangeable
interchangeable cross-reference
interchangeable
M-1300Interchangeable
interchangeable cross-reference
interchangeable
CVCPICInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 544-0280-002?
544-0280-002 is a PIN,SHOULDER,HEADLESS.
What parts can replace 544-0280-002?
There are 5 known substitutes for 544-0280-002: 121458, WA39, 119296 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 544-0280-002?
544-0280-002 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-441-0644. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026