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12759-00398 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12759-00398: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND, end_item_identification: 2355-01-532-2174 JOINT EOD RAPID RESPONSE VEHICLE (JERRV), part_name_assigned_by_controlling_agency: WASHER BRASS. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-553-0865, 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
12759-00398
NSN: 5310-01-553-0865
FSC: 5310 — Nuts and Washers
CAGE: 0Y3H3 — FASTENAL COMPANY DBA FASTENAL CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
special_features"MATERIAL CARBON STEEL, SAE J403 1050-10650.176IN ID X 0.310 OD X 0.023 THICKNESS, STANDARD ASME B1832131, TYPE A, STYLE INTERNAL TOOTH, TYPE: LOCK WASHER" IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identification2355-01-532-2174 JOINT EOD RAPID RESPONSE VEHICLE (JERRV)
part_name_assigned_by_controlling_agencyWASHER BRASS
NSN5310-01-553-0865
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12759-00398 · 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
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
SPECIAL FEATURES"MATERIAL CARBON STEEL, SAE J403 1050-10650.176IN ID X 0.310 OD X 0.023 THICKNESS, STANDARD ASME B1832131, TYPE A, STYLE INTERNAL TOOTH, TYPE: LOCK WASHER" IN
PERIPHERAL SHAPE STYLEROUND
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER BRASS
END ITEM IDENTIFICATION2355-01-532-2174 JOINT EOD RAPID RESPONSE VEHICLE (JERRV)
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
SUBSTITUTES & CROSS-REFERENCES 1
2002214Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12759-00398?
12759-00398 is a WASHER,FLAT.
What parts can replace 12759-00398?
There is 1 known substitute for 12759-00398: 2002214. Substitute compatibility should be verified for your specific system.
What is the NSN for 12759-00398?
12759-00398 is cataloged in the U.S. Government catalog under NSN 5310-01-553-0865. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.