PartsTable
Technical Data Sheet
B20500-22 ✓ 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: COPPER ALLOY OVERALL, hole_diameter: 0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN, outside_diameter: 0.296 INCHES NOMINAL IN, special_features: DYED DEEP YELLOW, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: CADMIUM AND CHROMATE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-167-0660, 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
B20500-22
NSN: 5310-00-167-0660
FSC: 5310
CAGE: K6214 — KEARSLEY AIRWAYS LTD (GBR)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
hole_diameter0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
outside_diameter0.296 INCHES NOMINAL IN
special_featuresDYED DEEP YELLOW
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL
material_thickness0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
departure_from_cited_designatorAS MODIFIED BY MATERIAL SPEC
NSN5310-00-167-0660
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: B20500-22 · 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: 0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
OUTSIDE DIAMETER: 0.296 INCHES NOMINAL IN
MATERIAL: COPPER ALLOY OVERALL
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
HOLE DIAMETER: 0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
DEPARTURE FROM CITED DESIGNATOR: AS MODIFIED BY MATERIAL SPEC
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.296 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
HOLE DIAMETER0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
SPECIAL FEATURESDYED DEEP YELLOW
DEPARTURE FROM CITED DESIGNATORAS MODIFIED BY MATERIAL SPEC
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
AN935B8Interchangeable
interchangeable cross-reference
interchangeable
8105219Interchangeable
interchangeable cross-reference
interchangeable
HK799P08NInterchangeable
interchangeable cross-reference
interchangeable
274Interchangeable
interchangeable cross-reference
interchangeable
0740802Interchangeable
interchangeable cross-reference
interchangeable
205-0022Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B20500-22?
B20500-22 is a WASHER,LOCK.
What parts can replace B20500-22?
There are 12 known substitutes for B20500-22: AN935B8, 8105219, HK799P08N and 9 more. Substitute compatibility should be verified for your specific system.
Is B20500-22 still available?
B20500-22 is currently cancelled.
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