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12340785 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12340785: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 5052 OVERALL, recess_depth: 0.190 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN, hole_diameter: 0.192 INCHES MINIMUM AND 0.196 INCHES MAXIMUM IN, overall_height: 0.245 INCHES MINIMUM AND 0.365 INCHES MAXIMUM IN, outside_diameter: 2.300 INCHES MINIMUM AND 2.420 INCHES MAXIMUM IN, style_designator: RECESSED. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-260-5784, 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
12340785
NSN: 5310-01-260-5784
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 5052 OVERALL
recess_depth0.190 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
hole_diameter0.192 INCHES MINIMUM AND 0.196 INCHES MAXIMUM IN
overall_height0.245 INCHES MINIMUM AND 0.365 INCHES MAXIMUM IN
outside_diameter2.300 INCHES MINIMUM AND 2.420 INCHES MAXIMUM IN
style_designatorRECESSED
surface_treatmentANODIZE OVERALL
material_thickness0.050 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
material_document_and_classificationASTM 8209 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-260-5784
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12340785 · 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: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM 8209 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 2.300 INCHES MINIMUM AND 2.420 INCHES MAXIMUM IN
•
RECESS DEPTH: 0.190 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.050 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
•
COLOR: OLIVE DRAB OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.245 INCHES MINIMUM AND 0.365 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM 8209 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER2.300 INCHES MINIMUM AND 2.420 INCHES MAXIMUM IN
RECESS DEPTH0.190 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
MATERIAL THICKNESS0.050 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
COLOROLIVE DRAB OVERALL
SURFACE TREATMENTANODIZE OVERALL
MATERIALALUMINUM ALLOY 5052 OVERALL
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 1
5310PL0793153Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 12340785?
12340785 is a WASHER,RECESSED.
What parts can replace 12340785?
There is 1 known substitute for 12340785: 5310PL0793153. Substitute compatibility should be verified for your specific system.
What is the NSN for 12340785?
12340785 is cataloged in the U.S. Government catalog under NSN 5310-01-260-5784. 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.