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6397389 PIECE 11 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6397389 PIECE 11: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY R-405 OVERALL, recess_depth: 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN, hole_diameter: 0.437 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN, overall_height: 0.187 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN, outside_diameter: 0.828 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN, style_designator: RECESSED. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-386-8155, 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
6397389 PIECE 11
NSN: 5310-01-386-8155
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY R-405 OVERALL
recess_depth0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
hole_diameter0.437 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN
overall_height0.187 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
outside_diameter0.828 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN
style_designatorRECESSED
material_thickness0.077 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
material_document_and_classificationQQ-N-281 CLB, GR405 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-386-8155
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6397389 PIECE 11 · 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
•
STYLE DESIGNATOR: RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 CLB, GR405 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.828 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN
•
RECESS DEPTH: 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.077 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
•
MATERIAL: NICKEL ALLOY R-405 OVERALL
•
HOLE DIAMETER: 0.437 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.187 INCHES MINIMUM AND 0.219 INCHES MAXIMUM IN
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 CLB, GR405 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.828 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN
RECESS DEPTH0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
MATERIAL THICKNESS0.077 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
MATERIALNICKEL ALLOY R-405 OVERALL
HOLE DIAMETER0.437 INCHES MINIMUM AND 0.469 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 6397389 PIECE 11?
6397389 PIECE 11 is a WASHER,RECESSED.
What is the NSN for 6397389 PIECE 11?
6397389 PIECE 11 is cataloged in the U.S. Government catalog under NSN 5310-01-386-8155. 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.