PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 6511637-1
6511637-1 ✓ 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 NUT,SHEET SPRING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: SHEET SPRING, nut_width: 0.625 INCHES NOMINAL IN, nut_length: 0.625 INCHES NOMINAL IN, panel_thickness: 0.078 INCHES NOMINAL IN, surface_treatment: CADMIUM OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-815-9961, 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
6511637-1
NSN: 5310-00-815-9961
FSC: 5310
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleSHEET SPRING
nut_width0.625 INCHES NOMINAL IN
nut_length0.625 INCHES NOMINAL IN
panel_thickness0.078 INCHES NOMINAL IN
surface_treatmentCADMIUM OVERALL
material_thickness0.030 INCHES MAXIMUM IN
mating_member_diameter_accommodated0.216 INCHES NOMINAL IN
NSN5310-00-815-9961
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6511637-1 · 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
•
MATERIAL THICKNESS: 0.030 INCHES MAXIMUM IN
•
NUT LENGTH: 0.625 INCHES NOMINAL IN
•
NUT STYLE: SHEET SPRING
•
NUT WIDTH: 0.625 INCHES NOMINAL IN
•
MATING MEMBER DIAMETER ACCOMMODATED: 0.216 INCHES NOMINAL IN
•
PANEL THICKNESS: 0.078 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.030 INCHES MAXIMUM IN
NUT LENGTH0.625 INCHES NOMINAL IN
NUT STYLESHEET SPRING
NUT WIDTH0.625 INCHES NOMINAL IN
MATING MEMBER DIAMETER ACCOMMODATED0.216 INCHES NOMINAL IN
PANEL THICKNESS0.078 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
H191Interchangeable
interchangeable cross-reference
interchangeable
RR-C-271Interchangeable
interchangeable cross-reference
interchangeable
2AG180Interchangeable
interchangeable cross-reference
interchangeable
111619Interchangeable
interchangeable cross-reference
interchangeable
210753Interchangeable
interchangeable cross-reference
interchangeable
8-9322-20Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 6511637-1?
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 6511637-1?
6511637-1 is a NUT,SHEET SPRING.
What parts can replace 6511637-1?
There are 6 known substitutes for 6511637-1: H191, RR-C-271, 2AG180 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6511637-1?
6511637-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-815-9961. 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 — 6511637-1

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