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Technical Data Sheet
PartsTable / COMPONENT / 6281C-SS-0632
6281C-SS-0632 ✓ 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 NUT,PLAIN,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 303 OVERALL, nut_style: CLINCH, nut_height: 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN, nut_diameter: 0.281 INCHES NOMINAL IN, pilot_length: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN, thread_class: 2B. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-106-6721, 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
6281C-SS-0632
NSN: 5310-01-106-6721
FSC: 5310
CAGE: 1YGB8 — CAREY MANUFACTURING CO, INC DBA AMATOM ELECTRONIC HARDWARE DIV AMATOM ELECTRONIC HARDWARE (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 303 OVERALL
nut_styleCLINCH
nut_height0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
nut_diameter0.281 INCHES NOMINAL IN
pilot_length0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.247 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.138 INCHES IN
counterbore_diameter0.187 INCHES MINIMUM AND 0.190 INCHES MAXIMUM SECOND END IN
NSN5310-01-106-6721
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6281C-SS-0632 · 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
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 2B
•
COUNTERBORE DIAMETER: 0.192 INCHES MINIMUM AND 0.197 INCHES MAXIMUM FIRST END IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,COND A FED SPEC 1ST MATERIAL RESPONSE OR ASTM A276 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A582 ASSN STD 2ND MATERIAL RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
NUT COUNTERBORE DEPTH: 0.271 INCHES MINIMUM AND 0.286 INCHES MAXIMUM SECOND END IN
•
THREAD QUANTITY PER INCH: 32
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2B
COUNTERBORE DIAMETER0.192 INCHES MINIMUM AND 0.197 INCHES MAXIMUM FIRST END IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COND A FED SPEC 1ST MATERIAL RESPONSE OR ASTM A276 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A582 ASSN STD 2ND MATERIAL RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NUT COUNTERBORE DEPTH0.271 INCHES MINIMUM AND 0.286 INCHES MAXIMUM SECOND END IN
THREAD QUANTITY PER INCH32
MATERIALSTEEL COMP 302 OR STEEL COMP 303 OVERALL
NUT COUNTERBORE DEPTH0.078 INCHES MINIMUM AND 0.085 INCHES MAXIMUM FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
2AN495Interchangeable
interchangeable cross-reference
interchangeable
17C824Interchangeable
interchangeable cross-reference
interchangeable
5305PL0656612Interchangeable
interchangeable cross-reference
interchangeable
50486Interchangeable
interchangeable cross-reference
interchangeable
444X 1/4 (16 IN. LG)Interchangeable
interchangeable cross-reference
interchangeable
120X 1/4 (16 IN. LG)Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6281C-SS-0632?
6281C-SS-0632 is a NUT,PLAIN,CLINCH.
What parts can replace 6281C-SS-0632?
There are 12 known substitutes for 6281C-SS-0632: 2AN495, 17C824, 5305PL0656612 and 9 more. Substitute compatibility should be verified for your specific system.
Is 6281C-SS-0632 still available?
6281C-SS-0632 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026