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12489595 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12489595: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include shape: RECTANGULAR W/ROUNDED CORNERS, width: 6.650 INCHES MINIMUM AND 6.650 INCHES MINIMUM AND 6.710 INCHES MAXIMUM6.710 INCHES MAXIMUM IN, length: 11.970 INCHES MINIMUM AND 11.970 INCHES MINIMUM AND 12.030 INCHES MAXIMUM12.030 INCHES MAXIMUM IN, material: STEEL, thickness: 0.119 INCHES NOMINAL0.119 INCHES NOMINAL IN, corner_radius: 0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-539-9284, 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
12489595
NSN: 5340-01-539-9284
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
shapeRECTANGULAR W/ROUNDED CORNERS
width6.650 INCHES MINIMUM AND 6.650 INCHES MINIMUM AND 6.710 INCHES MAXIMUM6.710 INCHES MAXIMUM IN
length11.970 INCHES MINIMUM AND 11.970 INCHES MINIMUM AND 12.030 INCHES MAXIMUM12.030 INCHES MAXIMUM IN
materialSTEEL
thickness0.119 INCHES NOMINAL0.119 INCHES NOMINAL IN
corner_radius0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
special_featuresPROTECTIVE FINISH IS 5.1.1 OF MIL-STD-171 WITH NON-CHROMIC ACID RINSE; PAINT PER DWG 19207-12344343; COLOR NO. 17925 WHITE PER FED-STD-595; HOLES TO BE FREE OF PAINT.
mounting_hole_typeUNTHREADED
mounting_hole_diameter0.404 INCHES MINIMUM AND 0.413 INCHES MAXIMUM FIRST HOLE IN
mounting_hole_quantity3 AND 4
end_item_identificationEND ITEM NSN: 2350-01-087-1095 M1A1 TANK; NEXT HIGHER ASSEMBLY IS 12437370.
part_name_assigned_by_controlling_agencyPLATE, BUS COUPLER
NSN5340-01-539-9284
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12489595 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: 3 AND 4
•
CORNER RADIUS: 0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
•
LENGTH: 11.970 INCHES MINIMUM AND 11.970 INCHES MINIMUM AND 12.030 INCHES MAXIMUM12.030 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A569 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A399 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A1008, CLASS CS ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A1011, CLASS CS ASSN STD SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.295 INCHES MINIMUM AND 0.304 INCHES MAXIMUM SECOND HOLE IN
•
SHAPE: RECTANGULAR W/ROUNDED CORNERS
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY3 AND 4
CORNER RADIUS0.350 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
LENGTH11.970 INCHES MINIMUM AND 11.970 INCHES MINIMUM AND 12.030 INCHES MAXIMUM12.030 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A569 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A399 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A1008, CLASS CS ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A1011, CLASS CS ASSN STD SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.295 INCHES MINIMUM AND 0.304 INCHES MAXIMUM SECOND HOLE IN
MOUNTING HOLE DIAMETER0.404 INCHES MINIMUM AND 0.413 INCHES MAXIMUM FIRST HOLE IN
SHAPERECTANGULAR W/ROUNDED CORNERS
SPECIAL FEATURESPROTECTIVE FINISH IS 5.1.1 OF MIL-STD-171 WITH NON-CHROMIC ACID RINSE; PAINT PER DWG 19207-12344343; COLOR NO. 17925 WHITE PER FED-STD-595; HOLES TO BE FREE OF PAINT.
WIDTH6.650 INCHES MINIMUM AND 6.650 INCHES MINIMUM AND 6.710 INCHES MAXIMUM6.710 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYPLATE, BUS COUPLER
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 12489595?
12489595 is a PLATE,MOUNTING.
What is the NSN for 12489595?
12489595 is cataloged in the U.S. Government catalog under NSN 5340-01-539-9284. 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.