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12315878 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12315878: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL, hole_diameter: 2.000 INCHES MINIMUM AND 2.205 INCHES MAXIMUM IN, overall_diameter: 3.240 INCHES MINIMUM AND 3.250 INCHES MAXIMUM IN, special_features: USED ON M1,XM1 TANK,M1A1, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-195-3541, 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
12315878
NSN: 5310-01-195-3541
FSC: 5310 — Nuts and Washers
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialPLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL
hole_diameter2.000 INCHES MINIMUM AND 2.205 INCHES MAXIMUM IN
overall_diameter3.240 INCHES MINIMUM AND 3.250 INCHES MAXIMUM IN
special_featuresUSED ON M1,XM1 TANK,M1A1
peripheral_shape_styleROUND
center_hole_shape_styleROUND
material_document_and_classification-P-410 6/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-195-3541
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12315878 · 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
•
OVERALL DIAMETER: 3.240 INCHES MINIMUM AND 3.250 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: -P-410 6/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 2.000 INCHES MINIMUM AND 2.205 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER3.240 INCHES MINIMUM AND 3.250 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION-P-410 6/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SPECIAL FEATURESUSED ON M1,XM1 TANK,M1A1
PERIPHERAL SHAPE STYLEROUND
MATERIALPLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER2.000 INCHES MINIMUM AND 2.205 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12315878?
12315878 is a WASHER,FLAT.
What is the NSN for 12315878?
12315878 is cataloged in the U.S. Government catalog under NSN 5310-01-195-3541. 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.