PartsTable
Technical Data Sheet
MS51412-11 ✓ 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,FLAT is a the manufacturer industrial component. Key specifications include thickness: 0.074 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN, hole_diameter: 0.649 INCHES MINIMUM AND 0.686 INCHES MAXIMUM IN, hardness_rating: 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM, overall_diameter: 1.305 INCHES MINIMUM AND 1.342 INCHES MAXIMUM IN, surface_treatment: ZINC AND CHROMATE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-242-2679, 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
MS51412-11
NSN: 5310-01-242-2679
FSC: 5310
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 1008 OR STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL
thickness0.074 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN
hole_diameter0.649 INCHES MINIMUM AND 0.686 INCHES MAXIMUM IN
hardness_rating34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
overall_diameter1.305 INCHES MINIMUM AND 1.342 INCHES MAXIMUM IN
surface_treatmentZINC AND CHROMATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identificationLOGISTICS SUPPORT VESSEL
cross-sectional_shape_styleRECTANGULAR
nondefinitive_spec/std_dataA CLASS AND A TYPE AND 1 GRADE
material_document_and_classificationASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN5310-01-242-2679
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS51412-11 · 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
SURFACE TREATMENT: ZINC AND CHROMATE OVERALL
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
CENTER HOLE SHAPE STYLE: ROUND
MATERIAL: STEEL COMP 1008 OR STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL
HARDNESS RATING: 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
NONDEFINITIVE SPEC/STD DATA: A CLASS AND A TYPE AND 1 GRADE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633,TY 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTZINC AND CHROMATE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
CENTER HOLE SHAPE STYLEROUND
MATERIALSTEEL COMP 1008 OR STEEL COMP 1010 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
END ITEM IDENTIFICATIONLOGISTICS SUPPORT VESSEL
NONDEFINITIVE SPEC/STD DATAA CLASS AND A TYPE AND 1 GRADE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633,TY 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THICKNESS0.074 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
88-20564-12Interchangeable
interchangeable cross-reference
interchangeable
88-20033-25AInterchangeable
interchangeable cross-reference
interchangeable
MS51412-25Interchangeable
interchangeable cross-reference
interchangeable
195541Interchangeable
interchangeable cross-reference
interchangeable
MS27183-10Interchangeable
interchangeable cross-reference
interchangeable
G9419274Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS51412-11?
MS51412-11 is a WASHER,FLAT.
What parts can replace MS51412-11?
There are 22 known substitutes for MS51412-11: 88-20564-12, 88-20033-25A, MS51412-25 and 19 more. Substitute compatibility should be verified for your specific system.
Is MS51412-11 still available?
MS51412-11 is currently cancelled.
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