PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 419085
419085 ✓ 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 410 OVERALL, thickness: 0.051 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN, hole_diameter: 0.401 INCHES MINIMUM AND 0.421 INCHES MAXIMUM IN, overall_diameter: 0.805 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL, 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 5310-00-543-2870, 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
419085
NSN: 5310-00-543-2870
FSC: 5310
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL COMP 410 OVERALL
thickness0.051 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
hole_diameter0.401 INCHES MINIMUM AND 0.421 INCHES MAXIMUM IN
overall_diameter0.805 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
nondefinitive_spec/std_dataA TYPE AND 1 GRADE AND B CLASS
departure_from_cited_designatorAS MODIFIED BY THE MATERIAL SPEC
material_document_and_classificationQQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-543-2870
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 419085 · 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
•
THICKNESS: 0.051 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
•
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY THE MATERIAL SPEC
•
NONDEFINITIVE SPEC/STD DATA: A TYPE AND 1 GRADE AND B CLASS
•
MATERIAL: STEEL COMP 410 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
HOLE DIAMETER: 0.401 INCHES MINIMUM AND 0.421 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.051 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY THE MATERIAL SPEC
NONDEFINITIVE SPEC/STD DATAA TYPE AND 1 GRADE AND B CLASS
MATERIALSTEEL COMP 410 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HOLE DIAMETER0.401 INCHES MINIMUM AND 0.421 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
OVERALL DIAMETER0.805 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
MS15795-814Interchangeable
interchangeable cross-reference
interchangeable
501-7368087 ITEM NO 11Interchangeable
interchangeable cross-reference
interchangeable
1C6171P09Interchangeable
interchangeable cross-reference
interchangeable
245-4510945-55Interchangeable
interchangeable cross-reference
interchangeable
946008-8140Interchangeable
interchangeable cross-reference
interchangeable
D9576-19A41Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 419085?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 419085?
419085 is a WASHER,FLAT.
What parts can replace 419085?
There are 11 known substitutes for 419085: MS15795-814, 501-7368087 ITEM NO 11, 1C6171P09 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 419085?
419085 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-543-2870. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 419085

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026