PartsTable
Technical Data Sheet
Download PDF

R8441 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

R8441: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 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 5310-01-057-4865, 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
R8441
NSN: 5310-01-057-4865
FSC: 5310 — Nuts and Washers
CAGE: 25693 — MEGGITT SAFETY SYSTEMS INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OVERALL
nut_styleROUND
nut_diameter1.375 INCHES NOMINAL IN
thread_class3B
nut_thickness0.250 INCHES NOMINAL IN
thread_seriesUNEF
thread_directionRIGHT-HAND
countersink_angle110.0 DEGREES NOMINAL NUT
drive_point_depth0.060 INCHES NOMINAL IN
surface_treatmentANODIZE OVERALL
nominal_thread_size1.250 INCHES IN
drive_point_quantity4
NSN5310-01-057-4865
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: R8441 · 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: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNEF
•
MATERIAL DOCUMENT AND CLASSIFICATION: WW-T-785 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.250 INCHES IN
•
NUT DIAMETER: 1.375 INCHES NOMINAL IN
•
DRIVE POINT DEPTH: 0.060 INCHES NOMINAL IN
•
NUT THICKNESS: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNEF
MATERIAL DOCUMENT AND CLASSIFICATIONWW-T-785 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.250 INCHES IN
NUT DIAMETER1.375 INCHES NOMINAL IN
DRIVE POINT DEPTH0.060 INCHES NOMINAL IN
NUT THICKNESS0.250 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE OVERALL
COUNTERSINK ANGLE110.0 DEGREES NOMINAL NUT
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
No demilitarization required
Ready to buy R8441?
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 R8441?
R8441 is a NUT,PLAIN,ROUND.
What is the NSN for R8441?
R8441 is cataloged in the U.S. Government catalog under NSN 5310-01-057-4865. 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 — R8441

✓ 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.