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12987813 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12987813: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include shape: RECTANGULAR, material: ALUMINUM ALLOY, special_features: BREAK ALL SHARP EDGES AND CORNERS, end_item_identification: XM23 MOTOR BALLISTIC COMPUTER, part_name_assigned_by_controlling_agency: MOUNTING BLOCK, BOTTOM, CI. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-485-3473, 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
12987813
NSN: 5340-01-485-3473
FSC: 5340 — Hardware, Commercial
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
shapeRECTANGULAR
materialALUMINUM ALLOY
special_featuresBREAK ALL SHARP EDGES AND CORNERS
end_item_identificationXM23 MOTOR BALLISTIC COMPUTER
part_name_assigned_by_controlling_agencyMOUNTING BLOCK, BOTTOM, CI
NSN5340-01-485-3473
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12987813 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
•
SHAPE: RECTANGULAR
•
MATERIAL: ALUMINUM ALLOY
TECHNICAL CHARACTERISTICS
SHAPERECTANGULAR
SPECIAL FEATURESBREAK ALL SHARP EDGES AND CORNERS
PART NAME ASSIGNED BY CONTROLLING AGENCYMOUNTING BLOCK, BOTTOM, CI
END ITEM IDENTIFICATIONXM23 MOTOR BALLISTIC COMPUTER
MATERIALALUMINUM ALLOY
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 12987813?
12987813 is a PLATE,MOUNTING.
What is the NSN for 12987813?
12987813 is cataloged in the U.S. Government catalog under NSN 5340-01-485-3473. 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.