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213223 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

213223: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include shape: SPECIAL, material: STEEL, thickness: 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN, special_features: THREE HOLES,0.281 IN. MIN AND 0.312 IN.

MAX; TWO HOLES,0.339 IN. MIN AND 0.349 IN. MAX DIA IN, surface_treatment: CADMIUM, material_hardness_rating: 90.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM.

This part is cataloged in the U.S. Government catalog under NSN 5340-00-312-9050, 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
213223
NSN: 5340-00-312-9050
FSC: 5340 — Hardware, Commercial
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
shapeSPECIAL
materialSTEEL
thickness0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
special_featuresTHREE HOLES,0.281 IN. MIN AND 0.312 IN. MAX; TWO HOLES,0.339 IN. MIN AND 0.349 IN. MAX DIA IN
surface_treatmentCADMIUM
material_hardness_rating90.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM
NSN5340-00-312-9050
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 213223 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
•
MATERIAL HARDNESS RATING: 90.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM
•
SHAPE: SPECIAL
•
SURFACE TREATMENT: CADMIUM
•
MATERIAL: STEEL
•
THICKNESS: 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING90.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM
SHAPESPECIAL
SPECIAL FEATURESTHREE HOLES,0.281 IN. MIN AND 0.312 IN. MAX; TWO HOLES,0.339 IN. MIN AND 0.349 IN. MAX DIA IN
SURFACE TREATMENTCADMIUM
MATERIALSTEEL
THICKNESS0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
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 213223?
213223 is a PLATE,MOUNTING.
What is the NSN for 213223?
213223 is cataloged in the U.S. Government catalog under NSN 5340-00-312-9050. 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.