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PartsTable / COMPONENT / A361-20
A361-20 ✓ 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 SWITCH,WIPER is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL, thickness: 0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN, hole_diameter: 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN, hardness_rating: 118.0 ROCKWELL R NOMINAL, overall_diameter: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN, peripheral_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-050-9118, 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
A361-20
NSN: 5310-00-050-9118
FSC: 5310
CAGE: 86928 — SEASTROM MANUFACTURING CO INC (USA)
SPECIFICATIONS
materialPLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL
thickness0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
hole_diameter0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
hardness_rating118.0 ROCKWELL R NOMINAL
overall_diameter0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationL-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-050-9118
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A361-20 · 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: 118.0 ROCKWELL R NOMINAL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: L-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
THICKNESS: 0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING118.0 ROCKWELL R NOMINAL
PERIPHERAL SHAPE STYLEROUND
MATERIALPLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONL-P-410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
OVERALL DIAMETER0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
179-764Interchangeable
interchangeable cross-reference
interchangeable
127707Interchangeable
interchangeable cross-reference
interchangeable
28L078-3Interchangeable
interchangeable cross-reference
interchangeable
CV9S5300-06PC136Interchangeable
interchangeable cross-reference
interchangeable
TD1330Interchangeable
interchangeable cross-reference
interchangeable
X8249PC1330Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A361-20?
A361-20 is a SWITCH,WIPER.
What parts can replace A361-20?
There are 15 known substitutes for A361-20: 179-764, 127707, 28L078-3 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A361-20?
A361-20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-050-9118. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026