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12387327-41 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12387327-41: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL, thickness: 0.053 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN, hole_diameter: 0.771 INCHES MINIMUM AND 0.791 INCHES MAXIMUM IN, heat_treatment: QUENCHED AND TEMPERED, overall_diameter: 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN, surface_treatment: ZINC AND CHROMATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-384-4231, 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
12387327-41
NSN: 5310-01-384-4231
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL
thickness0.053 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
hole_diameter0.771 INCHES MINIMUM AND 0.791 INCHES MAXIMUM IN
heat_treatmentQUENCHED AND TEMPERED
overall_diameter1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
surface_treatmentZINC AND CHROMATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
surface_treatment_document_and_classificationASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-384-4231
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12387327-41 · 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 DOCUMENT AND CLASSIFICATION: ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
OVERALL DIAMETER: 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
•
HEAT TREATMENT: QUENCHED AND TEMPERED
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: ZINC AND CHROMATE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
HEAT TREATMENTQUENCHED AND TEMPERED
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTZINC AND CHROMATE OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.771 INCHES MINIMUM AND 0.791 INCHES MAXIMUM IN
THICKNESS0.053 INCHES MINIMUM AND 0.067 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12387327-41?
12387327-41 is a WASHER,FLAT.
What is the NSN for 12387327-41?
12387327-41 is cataloged in the U.S. Government catalog under NSN 5310-01-384-4231. This indicates validated use in U.S. government and defense supply chains.
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