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12AB11 ✓ 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 1070 OVERALL, hole_diameter: 0.901 INCHES NOMINAL IN, overall_height: 0.080 INCHES NOMINAL IN, outside_diameter: 1.159 INCHES NOMINAL IN, special_features: 24 EQUALLY SPACED DIMPLES, material_thickness: 0.013 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-821-8338, 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
12AB11
NSN: 5310-00-821-8338
FSC: 5310
CAGE: 54370 — ALFA LAVAL INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 1070 OVERALL
hole_diameter0.901 INCHES NOMINAL IN
overall_height0.080 INCHES NOMINAL IN
outside_diameter1.159 INCHES NOMINAL IN
special_features24 EQUALLY SPACED DIMPLES
material_thickness0.013 INCHES NOMINAL IN
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-821-8338
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12AB11 · 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 DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL THICKNESS: 0.013 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.159 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.901 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1070 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURES24 EQUALLY SPACED DIMPLES
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.013 INCHES NOMINAL IN
OUTSIDE DIAMETER1.159 INCHES NOMINAL IN
HOLE DIAMETER0.901 INCHES NOMINAL IN
MATERIALSTEEL COMP 1070 OVERALL
OVERALL HEIGHT0.080 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
E4APC04Interchangeable
interchangeable cross-reference
interchangeable
8233Interchangeable
interchangeable cross-reference
interchangeable
115321Interchangeable
interchangeable cross-reference
interchangeable
KCI-100RInterchangeable
interchangeable cross-reference
interchangeable
MIL-B-10743Interchangeable
interchangeable cross-reference
interchangeable
ML161-AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12AB11?
12AB11 is a WASHER,SPRING TENSION.
What parts can replace 12AB11?
There are 22 known substitutes for 12AB11: E4APC04, 8233, 115321 and 19 more. Substitute compatibility should be verified for your specific system.
Is 12AB11 still available?
12AB11 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