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Technical Data Sheet
PartsTable / COMPONENT / 639151
639151 ✓ 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 COOLER,HYDRAULIC OIL,AIRCRAFT is a the manufacturer industrial component. Key specifications include material: CORK OVERALL, thickness: 0.125 INCHES NOMINAL IN, hole_diameter: 1.859 INCHES NOMINAL IN, overall_diameter: 2.297 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-252-4078, 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
639151
NSN: 5310-00-252-4078
FSC: 5310
CAGE: 12204 — CHRYSLER REALTY COMPANY LLC DBA DAIMLER CHRYSLER (USA)
SPECIFICATIONS
materialCORK OVERALL
thickness0.125 INCHES NOMINAL IN
hole_diameter1.859 INCHES NOMINAL IN
overall_diameter2.297 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-C-16090 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-252-4078
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 639151 · 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
•
OVERALL DIAMETER: 2.297 INCHES NOMINAL IN
•
MATERIAL: CORK OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
HOLE DIAMETER: 1.859 INCHES NOMINAL IN
•
CENTER HOLE SHAPE STYLE: ROUND
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-C-16090 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THICKNESS: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER2.297 INCHES NOMINAL IN
MATERIALCORK OVERALL
PERIPHERAL SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER1.859 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLEROUND
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-16090 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THICKNESS0.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
137777-02Interchangeable
interchangeable cross-reference
interchangeable
137777-04Interchangeable
interchangeable cross-reference
interchangeable
1178Interchangeable
interchangeable cross-reference
interchangeable
25-0027-03Interchangeable
interchangeable cross-reference
interchangeable
GGG-G-17 TY8CL1STAInterchangeable
interchangeable cross-reference
interchangeable
5027Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 639151?
639151 is a COOLER,HYDRAULIC OIL,AIRCRAFT.
What parts can replace 639151?
There are 26 known substitutes for 639151: 137777-02, 137777-04, 1178 and 23 more. Substitute compatibility should be verified for your specific system.
Is 639151 still available?
639151 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