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12540957 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12540957 is PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include shape: CURVED LEFT, width: 7.600 INCHES NOMINAL7.600 INCHES NOMINAL IN, length: 8.600 INCHES NOMINAL8.600 INCHES NOMINAL IN, material: ALUMINUM, thickness: 0.187 INCHES NOMINAL0.187 INCHES NOMINAL IN, corner_radius: 0.380 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-583-4964, 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
12540957
NSN: 5340-01-583-4964
FSC: 5340 — Hardware, Commercial
CAGE: 01365 — MARINE CORPS SYSTEMS COMMAND DIV MARINE CORPS SYSTEMS COMMAND TECHNICAL DATA REPOSITORY CUSTOMER SERVICE (USA)
SPECIFICATIONS
shapeCURVED LEFT
width7.600 INCHES NOMINAL7.600 INCHES NOMINAL IN
length8.600 INCHES NOMINAL8.600 INCHES NOMINAL IN
materialALUMINUM
thickness0.187 INCHES NOMINAL0.187 INCHES NOMINAL IN
corner_radius0.380 INCHES NOMINAL IN
special_featuresCURVED LEFT END IS A 90 DEGREE BEND;COMPONENT REQUIRES BENDING OPERATION
mounting_hole_typeUNTHREADED
mounting_hole_diameter0.281 INCHES NOMINAL SIXTH HOLE IN
mounting_hole_quantity8
end_item_identification2320-01-494-7606 AND 2355-01-539-3639, BOTH LIGHT ARMORED VEHICLES
part_name_assigned_by_controlling_agencyPLATE, END
NSN5340-01-583-4964
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12540957 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
•
MOUNTING HOLE QUANTITY: 8
•
CORNER RADIUS: 0.380 INCHES NOMINAL IN
•
LENGTH: 8.600 INCHES NOMINAL8.600 INCHES NOMINAL IN
•
MOUNTING HOLE DIAMETER: 0.281 INCHES NOMINAL FIRST HOLE IN
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY8
CORNER RADIUS0.380 INCHES NOMINAL IN
LENGTH8.600 INCHES NOMINAL8.600 INCHES NOMINAL IN
MOUNTING HOLE DIAMETER0.281 INCHES NOMINAL FIRST HOLE IN
MOUNTING HOLE DIAMETER0.281 INCHES NOMINAL FIFTH HOLE IN
MOUNTING HOLE DIAMETER0.281 INCHES NOMINAL SECOND HOLE IN
MOUNTING HOLE DIAMETER0.281 INCHES NOMINAL SIXTH HOLE IN
MOUNTING HOLE DIAMETER0.281 INCHES NOMINAL THIRD HOLE IN
MOUNTING HOLE DIAMETER0.348 INCHES NOMINAL EIGHTH HOLE IN
MOUNTING HOLE DIAMETER0.348 INCHES NOMINAL SEVENTH HOLE 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12540957?
12540957 is a PLATE,MOUNTING.
What is the NSN for 12540957?
12540957 is cataloged in the U.S. Government catalog under NSN 5340-01-583-4964. 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.