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6405497-1 — PLATE,MENDING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6405497-1: PLATE,MENDING.

The PLATE,MENDING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 OR STEEL COMP 302, overall_width: 0.500 INCHES NOMINAL IN, overall_length: 1.125 INCHES NOMINAL IN, special_features: 1 MTG HOLE 4-40 UND-2B AND 2ND MTG HOLE 10-32 UNF-2B, style_designator: RECTANGULAR, surface_treatment: PASSIVATE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-385-4471, 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
6405497-1
NSN: 5340-01-385-4471
FSC: 5340 — Hardware, Commercial
CAGE: 55974 — HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER TEST SYSTEMS DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 301 OR STEEL COMP 302
hole_quantity2
overall_width0.500 INCHES NOMINAL IN
overall_length1.125 INCHES NOMINAL IN
special_features1 MTG HOLE 4-40 UND-2B AND 2ND MTG HOLE 10-32 UNF-2B
style_designatorRECTANGULAR
surface_treatmentPASSIVATE
material_thickness0.090 INCHES NOMINAL IN
mounting_hole_typePLAIN AND THREADED
mounting_hole_diameter0.112 INCHES NOMINAL IN
material_document_and_classificationMIL-S-5059 1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-385-4471
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6405497-1 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: RECTANGULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5059 1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.112 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.090 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORRECTANGULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059 1/2 HARD MIL SPEC SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.112 INCHES NOMINAL IN
OVERALL LENGTH1.125 INCHES NOMINAL IN
OVERALL WIDTH0.500 INCHES NOMINAL IN
MATERIAL THICKNESS0.090 INCHES NOMINAL IN
SPECIAL FEATURES1 MTG HOLE 4-40 UND-2B AND 2ND MTG HOLE 10-32 UNF-2B
SURFACE TREATMENTPASSIVATE
MATERIALSTEEL COMP 301 OR STEEL COMP 302
HOLE QUANTITY2
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
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 6405497-1?
6405497-1 is a PLATE,MENDING.
What is the NSN for 6405497-1?
6405497-1 is cataloged in the U.S. Government catalog under NSN 5340-01-385-4471. 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.