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PartsTable / COMPONENT / G3631-2PC53
G3631-2PC53 ✓ 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 KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_width: 0.188 INCHES NOMINAL IN, overall_height: 0.188 INCHES NOMINAL IN, overall_length: 1.312 INCHES NOMINAL IN, style_designator: PLAIN, starting_edge_shape: STRAIGHT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-188-9360, 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
G3631-2PC53
NSN: 5315-00-188-9360
FSC: 5315
CAGE: 16712 — SIEMENS ENERGY, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.188 INCHES NOMINAL IN
overall_height0.188 INCHES NOMINAL IN
overall_length1.312 INCHES NOMINAL IN
style_designatorPLAIN
starting_edge_shapeSTRAIGHT
material_document_and_classificationMIL-S-890,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-188-9360
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: G3631-2PC53 · 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
•
STARTING EDGE SHAPE: STRAIGHT
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-890,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: PLAIN
TECHNICAL CHARACTERISTICS (FLIS)
STARTING EDGE SHAPESTRAIGHT
OVERALL WIDTH0.188 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-890,CL B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL HEIGHT0.188 INCHES NOMINAL IN
OVERALL LENGTH1.312 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORPLAIN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
G-611Interchangeable
interchangeable cross-reference
interchangeable
G7611Interchangeable
interchangeable cross-reference
interchangeable
GP25-42Interchangeable
interchangeable cross-reference
interchangeable
347C500A1C4D042Interchangeable
interchangeable cross-reference
interchangeable
4842H20-1-4Interchangeable
interchangeable cross-reference
interchangeable
G-442Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is G3631-2PC53?
G3631-2PC53 is a KEY,MACHINE.
What parts can replace G3631-2PC53?
There are 6 known substitutes for G3631-2PC53: G-611, G7611, GP25-42 and 3 more. Substitute compatibility should be verified for your specific system.
Is G3631-2PC53 still available?
G3631-2PC53 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