PartsTable
Technical Data Sheet
Download PDF

R8411 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

R8411: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: ROUND, nut_diameter: 1.375 INCHES NOMINAL IN, thread_class: 3B, nut_thickness: 0.250 INCHES NOMINAL IN, thread_series: UNEF. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-693-7436, 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
R8411
NSN: 5310-00-693-7436
FSC: 5310 — Nuts and Washers
CAGE: 45402 — MEGGITT SAFETY SYSTEMS, INC. DBA MEGGITT CONTROL SYSTEMS-VENTURA COUNTY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleROUND
nut_diameter1.375 INCHES NOMINAL IN
thread_class3B
nut_thickness0.250 INCHES NOMINAL IN
thread_seriesUNEF
thread_directionRIGHT-HAND
countersink_angle45.0 DEGREES NOMINAL NUT
surface_treatmentCADMIUM OVERALL
nominal_thread_size1.250 INCHES IN
drive_point_diameter0.125 INCHES NOMINAL IN
drive_point_quantity2
NSN5310-00-693-7436
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: R8411 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-B-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNEF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.250 INCHES IN
•
NUT DIAMETER: 1.375 INCHES NOMINAL IN
•
NUT THICKNESS: 0.250 INCHES NOMINAL IN
•
DRIVE POINT DIAMETER: 0.125 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-B-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNEF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.250 INCHES IN
NUT DIAMETER1.375 INCHES NOMINAL IN
NUT THICKNESS0.250 INCHES NOMINAL IN
DRIVE POINT DIAMETER0.125 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
COUNTERSINK ANGLE45.0 DEGREES NOMINAL NUT
DRIVE POINT QUANTITY2
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy R8411?
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 R8411?
R8411 is a NUT,PLAIN,ROUND.
What is the NSN for R8411?
R8411 is cataloged in the U.S. Government catalog under NSN 5310-00-693-7436. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — R8411

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.