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Technical Data Sheet
PartsTable / COMPONENT / 138595
138595 ✓ 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: 0.167 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN, outside_diameter: 0.322 INCHES NOMINAL IN, style_designator: COUNTERSINK EXTERNAL TEETH, countersink_angle: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM, surface_treatment: PHOSPHATE 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 5310-00-013-8595, 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
138595
NSN: 5310-00-013-8595
FSC: 5310
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 1060 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1075 OR STEEL COMP 1080 OVERALL
hole_diameter0.167 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN
outside_diameter0.322 INCHES NOMINAL IN
style_designatorCOUNTERSINK EXTERNAL TEETH
countersink_angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
surface_treatmentPHOSPHATE OVERALL
material_thickness0.017 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
nondefinitive_spec/std_dataC TYPE
material_document_and_classificationQQ-S-633,FS 1060 TO FS 1080 CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-013-8595
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 138595 · 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: STEEL COMP 1060 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1075 OR STEEL COMP 1080 OVERALL
•
SURFACE TREATMENT: PHOSPHATE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633,FS 1060 TO FS 1080 CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.322 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.017 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
•
COUNTERSINK ANGLE: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
•
STYLE DESIGNATOR: COUNTERSINK EXTERNAL TEETH
•
NONDEFINITIVE SPEC/STD DATA: C TYPE
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 1060 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1075 OR STEEL COMP 1080 OVERALL
SURFACE TREATMENTPHOSPHATE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633,FS 1060 TO FS 1080 CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.322 INCHES NOMINAL IN
MATERIAL THICKNESS0.017 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
STYLE DESIGNATORCOUNTERSINK EXTERNAL TEETH
NONDEFINITIVE SPEC/STD DATAC TYPE
HOLE DIAMETER0.167 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
1234582Interchangeable
interchangeable cross-reference
interchangeable
114614Interchangeable
interchangeable cross-reference
interchangeable
7416548Interchangeable
interchangeable cross-reference
interchangeable
1518Interchangeable
interchangeable cross-reference
interchangeable
114617Interchangeable
interchangeable cross-reference
interchangeable
1829P536Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 138595?
138595 is a WASHER,LOCK.
What parts can replace 138595?
There are 26 known substitutes for 138595: 1234582, 114614, 7416548 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 138595?
138595 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-013-8595. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026