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12385803 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12385803: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include shape: SPECIAL, width: 26.120 INCHES NOMINAL IN, length: 35.250 INCHES NOMINAL IN, material: ALUMINUM ALLOY 5083, thickness: 0.625 INCHES NOMINAL IN, material_document_and_classification: QQ-A-250/6 FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-417-8588, 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
12385803
NSN: 5340-01-417-8588
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
shapeSPECIAL
width26.120 INCHES NOMINAL IN
length35.250 INCHES NOMINAL IN
materialALUMINUM ALLOY 5083
thickness0.625 INCHES NOMINAL IN
material_document_and_classificationQQ-A-250/6 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-417-8588
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12385803 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
•
LENGTH: 35.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/6 FED SPEC SINGLE MATERIAL RESPONSE
•
SHAPE: SPECIAL
•
WIDTH: 26.120 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY 5083
•
THICKNESS: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH35.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/6 FED SPEC SINGLE MATERIAL RESPONSE
SHAPESPECIAL
WIDTH26.120 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 5083
THICKNESS0.625 INCHES NOMINAL IN
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 12385803?
12385803 is a PLATE,MOUNTING.
What is the NSN for 12385803?
12385803 is cataloged in the U.S. Government catalog under NSN 5340-01-417-8588. 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.