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12266510 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12266510: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include shape: RECTANGULAR, width: 4.940 INCHES NOMINAL4.940 INCHES NOMINAL IN, length: 7.500 INCHES NOMINAL7.500 INCHES NOMINAL IN, material: ALUMINUM, thickness: 0.380 INCHES NOMINAL0.380 INCHES NOMINAL IN, corner_radius: 0.280 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-073-7288, 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
12266510
NSN: 5340-01-073-7288
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
shapeRECTANGULAR
width4.940 INCHES NOMINAL4.940 INCHES NOMINAL IN
length7.500 INCHES NOMINAL7.500 INCHES NOMINAL IN
materialALUMINUM
thickness0.380 INCHES NOMINAL0.380 INCHES NOMINAL IN
corner_radius0.280 INCHES NOMINAL IN
aperture_shapeROUND
aperture_diameter4.250 INCHES NOMINAL IN
surface_treatmentPAINT
mounting_hole_typeUNTHREADED
raised_surface_height0.093 INCHES NOMINAL IN
mounting_hole_diameter0.177 INCHES NOMINAL ALL HOLES IN
NSN5340-01-073-7288
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12266510 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: 6
•
CORNER RADIUS: 0.280 INCHES NOMINAL IN
•
LENGTH: 7.500 INCHES NOMINAL7.500 INCHES NOMINAL IN
•
RAISED SURFACE HEIGHT: 0.093 INCHES NOMINAL IN
•
RAISED SURFACE DIAMETER: 5.060 INCHES NOMINAL IN
•
MOUNTING HOLE DIAMETER: 0.177 INCHES NOMINAL ALL HOLES IN
•
SHAPE: RECTANGULAR
•
APERTURE DIAMETER: 4.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY6
CORNER RADIUS0.280 INCHES NOMINAL IN
LENGTH7.500 INCHES NOMINAL7.500 INCHES NOMINAL IN
RAISED SURFACE HEIGHT0.093 INCHES NOMINAL IN
RAISED SURFACE DIAMETER5.060 INCHES NOMINAL IN
MOUNTING HOLE DIAMETER0.177 INCHES NOMINAL ALL HOLES IN
SHAPERECTANGULAR
APERTURE DIAMETER4.250 INCHES NOMINAL IN
SPECIAL FEATURESRESIN-IMPREGNATED; MTG HOLES 0.031 SPOTFACE; MOUNTS INDICATOR-12277771,VALVE-12277772,DESICCATOR-12327962; MOUNTING CONFIGURATION: 2 PARALLEL LINES 3 HOLES EACH; 4.063 C-TO-C FIRST-TO-SECOND HOLES; 2.875 SECOND-TO-THIRD HOLES
SURFACE TREATMENTPAINT
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 1
6695-305Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 12266510?
12266510 is a PLATE,MOUNTING.
What parts can replace 12266510?
There is 1 known substitute for 12266510: 6695-305. Substitute compatibility should be verified for your specific system.
What is the NSN for 12266510?
12266510 is cataloged in the U.S. Government catalog under NSN 5340-01-073-7288. 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.