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12387327 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12387327: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, thickness: 0.118 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN, hole_diameter: 0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN, heat_treatment: QUENCHED AND TEMPERED, overall_diameter: 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN, surface_treatment: ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-964-3415, 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
NSN: 5310-00-964-3415
NIINs: 009643415, 012032314, 013732547, 013790007, 013790804, 013799572, 013799615, 013799663, 013799723, 013799943, 013819948, 013829030, 013829984, 013829996, 013830005, 013830032, 013844683, 013844712, 013882296, 013884179, 013900053, 013996995, 014618376, 014763701, 014776755, 015563832, 015669850, 015681789, 015733214, 015733228, 015869647, 015905414, 016078506
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
thickness0.118 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN
hole_diameter0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM IN
heat_treatmentQUENCHED AND TEMPERED
overall_diameter2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN
surface_treatmentZINC OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identificationRG-33 MRAP; MULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
cross-sectional_shape_styleRECTANGULAR
surface_treatment_document_and_classificationQQ-P-416, TYPE 2, CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-964-3415
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12387327 · 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
SUBSTITUTES & CROSS-REFERENCES 3
10390325Reference document
Same NSN cross-reference
Reference document — Informative reference only
10910174-19Reference document
Same NSN cross-reference
Reference document — NATO reproduction reference
12569613Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12387327?
12387327 is a WASHER,FLAT.
What parts can replace 12387327?
There are 3 known substitutes for 12387327: 10390325, 10910174-19, 12569613. Substitute compatibility should be verified for your specific system.
What is the NSN for 12387327?
12387327 is cataloged in the U.S. Government catalog under NSN 5310-00-964-3415. This indicates validated use in U.S. government and defense supply chains.
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