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PartsTable / COMPONENT / MK030L
MK030L ✓ 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,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1075 OR STEEL COMP 1074 OVERALL, hole_diameter: 0.856 INCHES NOMINAL IN, overall_height: 0.075 INCHES NOMINAL IN, outside_diameter: 1.102 INCHES NOMINAL IN, style_designator: SPRING TENSION, material_thickness: 0.012 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-954-2353, 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
MK030L
NSN: 5310-00-954-2353
FSC: 5310
CAGE: 99251 — MISSION SYSTEMS DAVENPORT INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 1075 OR STEEL COMP 1074 OVERALL
hole_diameter0.856 INCHES NOMINAL IN
overall_height0.075 INCHES NOMINAL IN
outside_diameter1.102 INCHES NOMINAL IN
style_designatorSPRING TENSION
material_thickness0.012 INCHES NOMINAL IN
material_document_and_classificationAISI ASSN STD 1ST MATERIAL RESPONSE OR STM A682 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-954-2353
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MK030L · 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
•
OUTSIDE DIAMETER: 1.102 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD 1ST MATERIAL RESPONSE OR STM A682 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL THICKNESS: 0.012 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.856 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SPRING TENSION
•
MATERIAL: STEEL COMP 1075 OR STEEL COMP 1074 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER1.102 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD 1ST MATERIAL RESPONSE OR STM A682 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.012 INCHES NOMINAL IN
HOLE DIAMETER0.856 INCHES NOMINAL IN
STYLE DESIGNATORSPRING TENSION
OVERALL HEIGHT0.075 INCHES NOMINAL IN
MATERIALSTEEL COMP 1075 OR STEEL COMP 1074 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
130292A8Interchangeable
interchangeable cross-reference
interchangeable
7400-1Interchangeable
interchangeable cross-reference
interchangeable
ER8Interchangeable
interchangeable cross-reference
interchangeable
R8Interchangeable
interchangeable cross-reference
interchangeable
R8ZJ5EInterchangeable
interchangeable cross-reference
interchangeable
R8XR5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MK030L?
MK030L is a WASHER,SPRING TENSION.
What parts can replace MK030L?
There are 28 known substitutes for MK030L: 130292A8, 7400-1, ER8 and 25 more. Substitute compatibility should be verified for your specific system.
Is MK030L still available?
MK030L 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