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8447398 — WASHER,SHOULDERED AND RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

8447398: WASHER,SHOULDERED AND RECESSED.

The WASHER,SHOULDERED AND RECESSED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, recess_depth: 0.406 INCHES NOMINAL IN, hole_diameter: 2.160 INCHES NOMINAL IN, overall_height: 1.000 INCHES NOMINAL IN, recess_diameter: 2.813 INCHES NOMINAL IN, shoulder_height: 0.400 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-008-6303, 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
8447398
NSN: 5310-01-008-6303
FSC: 5310 — Nuts and Washers
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
recess_depth0.406 INCHES NOMINAL IN
hole_diameter2.160 INCHES NOMINAL IN
overall_height1.000 INCHES NOMINAL IN
recess_diameter2.813 INCHES NOMINAL IN
shoulder_height0.400 INCHES NOMINAL IN
outside_diameter6.248 INCHES NOMINAL IN
style_designatorSHOULDERED AND RECESSED
shoulder_diameter3.220 INCHES NOMINAL IN
surface_treatmentANODIZE OVERALL
material_thickness0.600 INCHES NOMINAL IN
end_item_identificationM102 HOWITZER
NSN5310-01-008-6303
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8447398 · 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,TYPE 1 OR 2,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SHOULDER HEIGHT: 0.400 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDERED AND RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-200/8,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 6.248 INCHES NOMINAL IN
•
RECESS DEPTH: 0.406 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.600 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.000 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 1 OR 2,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SHOULDER HEIGHT0.400 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDERED AND RECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/8,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER6.248 INCHES NOMINAL IN
RECESS DEPTH0.406 INCHES NOMINAL IN
MATERIAL THICKNESS0.600 INCHES NOMINAL IN
SHOULDER DIAMETER3.220 INCHES NOMINAL IN
RECESS DIAMETER2.813 INCHES NOMINAL 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 8447398?
8447398 is a WASHER,SHOULDERED AND RECESSED.
What is the NSN for 8447398?
8447398 is cataloged in the U.S. Government catalog under NSN 5310-01-008-6303. 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.