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12311448 — PLATE,MENDING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12311448: PLATE,MENDING.

The PLATE,MENDING is a the manufacturer industrial component. Key specifications include material: STEEL, overall_width: 0.750 INCHES NOMINAL IN, overall_length: 29.720 INCHES NOMINAL IN, special_features: HAS A .31R AT ONE END TOP, style_designator: RECTANGULAR, material_thickness: 0.120 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-142-8243, 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
12311448
NSN: 5340-01-142-8243
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL
hole_quantity6
overall_width0.750 INCHES NOMINAL IN
overall_length29.720 INCHES NOMINAL IN
special_featuresHAS A .31R AT ONE END TOP
style_designatorRECTANGULAR
material_thickness0.120 INCHES NOMINAL IN
mounting_hole_diameter0.280 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
end_item_identification2350-01-136-8738;M1 IMPROVED
NSN5340-01-142-8243
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12311448 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
•
STYLE DESIGNATOR: RECTANGULAR
•
MOUNTING HOLE DIAMETER: 0.280 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.120 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORRECTANGULAR
MOUNTING HOLE DIAMETER0.280 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
OVERALL LENGTH29.720 INCHES NOMINAL IN
OVERALL WIDTH0.750 INCHES NOMINAL IN
MATERIAL THICKNESS0.120 INCHES NOMINAL IN
SPECIAL FEATURESHAS A .31R AT ONE END TOP
END ITEM IDENTIFICATION2350-01-136-8738;M1 IMPROVED
MATERIALSTEEL
HOLE QUANTITY6
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12311448?
12311448 is a PLATE,MENDING.
What is the NSN for 12311448?
12311448 is cataloged in the U.S. Government catalog under NSN 5340-01-142-8243. 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.