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Technical Data Sheet
PartsTable / COMPONENT / CR211
CR211 ✓ 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 RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 2330 OVERALL, duty_type: CONTINUOUS, thickness: 0.0625 INCHES MINIMUM AND 0.0635 INCHES MAXIMUM IN, key_height: 0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN, overall_width: 2.310 INCHES NOMINAL IN, overall_height: 2.750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-045-2561, 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
CR211
NSN: 5315-00-045-2561
FSC: 5315
CAGE: 00141 — ROLLER BEARING CO OF AMERICA, INC DIV PIC DESIGN (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 2330 OVERALL
duty_typeCONTINUOUS
thickness0.0625 INCHES MINIMUM AND 0.0635 INCHES MAXIMUM IN
key_height0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
coil_quantity1
overall_width2.310 INCHES NOMINAL IN
overall_height2.750 INCHES NOMINAL IN
overall_length2.310 INCHES NOMINAL IN
circle_diameter0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
special_featuresDPDT 15 AMP
style_designatorROUND BOTTOM
NSN5315-00-045-2561
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: CR211 · 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
•
KEY HEIGHT: 0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
•
CIRCLE DIAMETER: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
STARTING EDGE SHAPE: ROUND
•
KEY SIZE DESIGNATION: WOODRUFF 211
•
THICKNESS: 0.0625 INCHES MINIMUM AND 0.0635 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: ROUND BOTTOM
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OR 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
KEY HEIGHT0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
CIRCLE DIAMETER0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
STARTING EDGE SHAPEROUND
KEY SIZE DESIGNATIONWOODRUFF 211
THICKNESS0.0625 INCHES MINIMUM AND 0.0635 INCHES MAXIMUM IN
STYLE DESIGNATORROUND BOTTOM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC ALL MATERIAL RESPONSES OR 66 FED STD ALL MATERIAL RESPONSES OVERALL
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
MATERIALSTEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 2330 OVERALL
STARTING EDGE RADIUS0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
54087Interchangeable
interchangeable cross-reference
interchangeable
154087Interchangeable
interchangeable cross-reference
interchangeable
4B97529-103AInterchangeable
interchangeable cross-reference
interchangeable
CR21-1Interchangeable
interchangeable cross-reference
interchangeable
0-32-76-2Interchangeable
interchangeable cross-reference
interchangeable
GK502A211Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CR211?
CR211 is a RELAY,ELECTROMAGNETIC.
What parts can replace CR211?
There are 11 known substitutes for CR211: 54087, 154087, 4B97529-103A and 8 more. Substitute compatibility should be verified for your specific system.
Is CR211 still available?
CR211 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026