PartsTable
Technical Data Sheet
12759-00397 ✓ 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 material: STEEL OVERALL, thickness: 2.0 MILLIMETERS NOMINAL MM, hole_diameter: 10.0 MILLIMETERS NOMINAL MM, overall_diameter: 20.0 MILLIMETERS NOMINAL MM, special_features: BLUE ZINC THROUGH HARDENED FLAT WASHER, surface_treatment: ZINC OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-553-0831, 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
12759-00397
NSN: 5310-01-553-0831
FSC: 5310
CAGE: 0Y3H3 — FASTENAL COMPANY DBA FASTENAL CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness2.0 MILLIMETERS NOMINAL MM
hole_diameter10.0 MILLIMETERS NOMINAL MM
overall_diameter20.0 MILLIMETERS NOMINAL MM
special_featuresBLUE ZINC THROUGH HARDENED FLAT WASHER
surface_treatmentZINC OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identification2355-01-532-2174 JOINT EOD RAPID RESPONSE VEHICLE (JERRV); MRAP BUFFALO MK2A2; MRAP - COUGAR CAT2 A2; MRAP - COUGAR CAT1 A2
cross-sectional_shape_styleRECTANGULAR
part_name_assigned_by_controlling_agencyWASHER, FLAT
NSN5310-01-553-0831
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12759-00397 · 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: STEEL OVERALL
PERIPHERAL SHAPE STYLE: ROUND
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
THICKNESS: 2.0 MILLIMETERS NOMINAL MM
HOLE DIAMETER: 10.0 MILLIMETERS NOMINAL MM
CENTER HOLE SHAPE STYLE: ROUND
OVERALL DIAMETER: 20.0 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS2.0 MILLIMETERS NOMINAL MM
HOLE DIAMETER10.0 MILLIMETERS NOMINAL MM
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, FLAT
CENTER HOLE SHAPE STYLEROUND
OVERALL DIAMETER20.0 MILLIMETERS NOMINAL MM
END ITEM IDENTIFICATION2355-01-532-2174 JOINT EOD RAPID RESPONSE VEHICLE (JERRV); MRAP BUFFALO MK2A2; MRAP - COUGAR CAT2 A2; MRAP - COUGAR CAT1 A2
SPECIAL FEATURESBLUE ZINC THROUGH HARDENED FLAT WASHER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
P111C83Interchangeable
interchangeable cross-reference
interchangeable
PEI 9609Interchangeable
interchangeable cross-reference
interchangeable
7707738P003Interchangeable
interchangeable cross-reference
interchangeable
43984Interchangeable
interchangeable cross-reference
interchangeable
PEI 7943Interchangeable
interchangeable cross-reference
interchangeable
243187P1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12759-00397?
12759-00397 is a WASHER,FLAT.
What parts can replace 12759-00397?
There are 9 known substitutes for 12759-00397: P111C83, PEI 9609, 7707738P003 and 6 more. Substitute compatibility should be verified for your specific system.
Is 12759-00397 still available?
12759-00397 is currently cancelled.
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