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Technical Data Sheet
PartsTable / COMPONENT / 1P230
1P230 ✓ 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,KEYWAY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1040 OR STEEL COMP 1045 OR STEEL COMP 1050 OVERALL, hole_diameter: 0.505 INCHES NOMINAL IN, hardness_rating: 68.0 ROCKWELL A MINIMUM OR 70.0 ROCKWELL A MAXIMUM, outside_diameter: 0.625 INCHES NOMINAL IN, material_thickness: 0.036 INCHES NOMINAL IN, external_keyway_width: 0.188 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-564-0397, 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
1P230
NSN: 5310-00-564-0397
FSC: 5310
CAGE: 77264 — PHOENIX SPECIALTY MFG CO INC (USA)
SPECIFICATIONS
materialSTEEL COMP 1040 OR STEEL COMP 1045 OR STEEL COMP 1050 OVERALL
hole_diameter0.505 INCHES NOMINAL IN
hardness_rating68.0 ROCKWELL A MINIMUM OR 70.0 ROCKWELL A MAXIMUM
outside_diameter0.625 INCHES NOMINAL IN
material_thickness0.036 INCHES NOMINAL IN
external_keyway_width0.188 INCHES NOMINAL IN
external_keyway_length0.015 INCHES NOMINAL IN
external_keyway_quantity3
material_document_and_classificationAISI ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN5310-00-564-0397
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1P230 · 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
•
EXTERNAL KEYWAY WIDTH: 0.188 INCHES NOMINAL IN
•
EXTERNAL KEYWAY LENGTH: 0.015 INCHES NOMINAL IN
•
EXTERNAL KEYWAY QUANTITY: 3
•
OUTSIDE DIAMETER: 0.625 INCHES NOMINAL IN
•
HARDNESS RATING: 68.0 ROCKWELL A MINIMUM OR 70.0 ROCKWELL A MAXIMUM
•
MATERIAL: STEEL COMP 1040 OR STEEL COMP 1045 OR STEEL COMP 1050 OVERALL
•
HOLE DIAMETER: 0.505 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
EXTERNAL KEYWAY WIDTH0.188 INCHES NOMINAL IN
EXTERNAL KEYWAY LENGTH0.015 INCHES NOMINAL IN
EXTERNAL KEYWAY QUANTITY3
OUTSIDE DIAMETER0.625 INCHES NOMINAL IN
HARDNESS RATING68.0 ROCKWELL A MINIMUM OR 70.0 ROCKWELL A MAXIMUM
MATERIALSTEEL COMP 1040 OR STEEL COMP 1045 OR STEEL COMP 1050 OVERALL
HOLE DIAMETER0.505 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIAL THICKNESS0.036 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
HHG101TYPE1Interchangeable
interchangeable cross-reference
interchangeable
5615Interchangeable
interchangeable cross-reference
interchangeable
16-633Interchangeable
interchangeable cross-reference
interchangeable
SM-B-525564-2Interchangeable
interchangeable cross-reference
interchangeable
1694-1-5Interchangeable
interchangeable cross-reference
interchangeable
011-2028-479Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1P230?
1P230 is a WASHER,KEYWAY.
What parts can replace 1P230?
There are 19 known substitutes for 1P230: HHG101TYPE1, 5615, 16-633 and 16 more. Substitute compatibility should be verified for your specific system.
Is 1P230 still available?
1P230 is currently cancelled.
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Last verified: July 2026