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Technical Data Sheet
PartsTable / COMPONENT / 10163821
10163821 ✓ 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 WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 316 OVERALL, thickness: 0.021 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN, hole_diameter: 0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN, overall_diameter: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-136-6133, 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
10163821
NSN: 5310-00-136-6133
FSC: 5310
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 316 OVERALL
thickness0.021 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
hole_diameter0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
overall_diameter0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-136-6133
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10163821 · 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
•
CENTER HOLE SHAPE STYLE: ROUND
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 316 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
THICKNESS: 0.021 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE SHAPE STYLEROUND
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 316 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.021 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
OVERALL DIAMETER0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
HOLE DIAMETER0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
MS35338-140Interchangeable
interchangeable cross-reference
interchangeable
15155Interchangeable
interchangeable cross-reference
interchangeable
ASC1030036Interchangeable
interchangeable cross-reference
interchangeable
310-6340-000Interchangeable
Same NIIN cross-reference
interchangeable
310-6340-00Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10163821?
10163821 is a WASHER,FLAT.
What parts can replace 10163821?
There are 5 known substitutes for 10163821: MS35338-140, 15155, ASC1030036 and 2 more. Substitute compatibility should be verified for your specific system.
Is 10163821 still available?
10163821 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