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1220D0489 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1220D0489: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include shape: RECTANGULAR, length: 8.500 INCHES NOMINAL8.500 INCHES NOMINAL IN, material: NICKEL ALLOY, thickness: 0.880 INCHES NOMINAL0.880 INCHES NOMINAL IN, special_features: MOUNTING CONFIGURATION: 7.500 IN. C TO C ALONG LG AND 5.250 IN.

C TO C ALONG W IN, features_provided: RAISED SURFACE. This part is cataloged in the U.S. Government catalog under NSN 5340-01-374-2146, 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
1220D0489
NSN: 5340-01-374-2146
FSC: 5340 — Hardware, Commercial
CAGE: 03538 — LOCKHEED MARTIN CORPORATION DIV RMS (USA)
SPECIFICATIONS
shapeRECTANGULAR
length8.500 INCHES NOMINAL8.500 INCHES NOMINAL IN
materialNICKEL ALLOY
thickness0.880 INCHES NOMINAL0.880 INCHES NOMINAL IN
special_featuresMOUNTING CONFIGURATION: 7.500 IN. C TO C ALONG LG AND 5.250 IN. C TO C ALONG W IN
features_providedRAISED SURFACE
mounting_hole_typeUNTHREADED
raised_surface_height0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
raised_surface_length6.250 INCHES NOMINAL IN
mounting_hole_diameter0.404 INCHES MINIMUM AND 0.411 INCHES MAXIMUM ALL HOLES IN
mounting_hole_quantity4
material_document_and_classificationQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-374-2146
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1220D0489 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: 4
•
LENGTH: 8.500 INCHES NOMINAL8.500 INCHES NOMINAL IN
•
RAISED SURFACE HEIGHT: 0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
•
RAISED SURFACE LENGTH: 6.250 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.404 INCHES MINIMUM AND 0.411 INCHES MAXIMUM ALL HOLES IN
•
SHAPE: RECTANGULAR
•
FEATURES PROVIDED: RAISED SURFACE
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY4
LENGTH8.500 INCHES NOMINAL8.500 INCHES NOMINAL IN
RAISED SURFACE HEIGHT0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
RAISED SURFACE LENGTH6.250 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.404 INCHES MINIMUM AND 0.411 INCHES MAXIMUM ALL HOLES IN
SHAPERECTANGULAR
FEATURES PROVIDEDRAISED SURFACE
SPECIAL FEATURESMOUNTING CONFIGURATION: 7.500 IN. C TO C ALONG LG AND 5.250 IN. C TO C ALONG W IN
MATERIALNICKEL 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 1220D0489?
1220D0489 is a PLATE,MOUNTING.
What is the NSN for 1220D0489?
1220D0489 is cataloged in the U.S. Government catalog under NSN 5340-01-374-2146. This indicates validated use in U.S. government and defense supply chains.
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