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Technical Data Sheet
PartsTable / COMPONENT / BECX1B1
BECX1B1 ✓ 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,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1060 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1075 OR STEEL COMP 1080 OVERALL, hole_diameter: 0.115 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN, hardness_rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM, outside_diameter: 0.212 INCHES MAXIMUM IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: CADMIUM OR ZINC 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 5310-00-013-1043, 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
BECX1B1
NSN: 5310-00-013-1043
FSC: 5310
CAGE: 00000
SPECIFICATIONS
materialSTEEL COMP 1060 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1075 OR STEEL COMP 1080 OVERALL
hole_diameter0.115 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
outside_diameter0.212 INCHES MAXIMUM IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentCADMIUM OR ZINC OVERALL
material_thickness0.025 INCHES NOMINAL IN
nondefinitive_spec/std_dataA CLASS AND 2 STYLE
material_document_and_classificationQQ-S-633 CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-013-1043
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BECX1B1 · 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
•
OUTSIDE DIAMETER: 0.212 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
MATERIAL: STEEL COMP 1060 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1075 OR STEEL COMP 1080 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633 CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
NONDEFINITIVE SPEC/STD DATA: A CLASS AND 2 STYLE
•
MATERIAL THICKNESS: 0.025 INCHES NOMINAL IN
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.212 INCHES MAXIMUM IN
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
MATERIALSTEEL COMP 1060 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1075 OR STEEL COMP 1080 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
NONDEFINITIVE SPEC/STD DATAA CLASS AND 2 STYLE
MATERIAL THICKNESS0.025 INCHES NOMINAL IN
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.115 INCHES MINIMUM AND 0.124 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
5305PL0577452Interchangeable
interchangeable cross-reference
interchangeable
83008Interchangeable
interchangeable cross-reference
interchangeable
5723Interchangeable
interchangeable cross-reference
interchangeable
7582K9Interchangeable
interchangeable cross-reference
interchangeable
MS51958-15Interchangeable
interchangeable cross-reference
interchangeable
FF-W-84CLASSAST YLE1N04CADInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BECX1B1?
BECX1B1 is a WASHER,LOCK.
What parts can replace BECX1B1?
There are 12 known substitutes for BECX1B1: 5305PL0577452, 83008, 5723 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BECX1B1?
BECX1B1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-013-1043. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026