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139002 ✓ 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 COVER,VALVE,BOTTOM is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-059-0491, 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
139002
NSN: 5315-00-059-0491
FSC: 5315
CAGE: 36513 — ATLAS POLAR COMPANY LIMITED DIV ATLAS POLAR COMPANY LTD (CAN)
SPECIFICATIONS
Part Number139002
NSN5315-00-059-0491
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 139002 · 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
•
POINT TYPE: EXTENDED PRONG SQUARE CUT
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
DIAMETER: 0.116 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
•
UNDERLOOP LENGTH: 1.125 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
HARDNESS RATING: 55.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 67.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A493 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
STYLE DESIGNATOR: STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
POINT TYPEEXTENDED PRONG SQUARE CUT
SURFACE TREATMENTPASSIVATE OVERALL
DIAMETER0.116 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN
UNDERLOOP LENGTH1.125 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING55.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 67.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A493 ASSN STD ALL MATERIAL RESPONSES OVERALL
STYLE DESIGNATORSTANDARD
MATERIALSTEEL COMP 302 OR STEEL COMP 304 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
8345-00-130-3142Interchangeable
interchangeable cross-reference
interchangeable
A-A-2864Interchangeable
interchangeable cross-reference
interchangeable
DDD-F-410Interchangeable
interchangeable cross-reference
interchangeable
139002Interchangeable
interchangeable cross-reference
interchangeable
TU-279Interchangeable
interchangeable cross-reference
interchangeable
1515-7-89Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 139002?
139002 is a COVER,VALVE,BOTTOM.
What parts can replace 139002?
There are 22 known substitutes for 139002: 8345-00-130-3142, A-A-2864, DDD-F-410 and 19 more. Substitute compatibility should be verified for your specific system.
Is 139002 still available?
139002 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