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5857290 — PLATE,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5857290: PLATE,MOUNTING.

The PLATE,MOUNTING is a the manufacturer industrial component. Key specifications include shape: RECTANGULAR, width: 4.360 INCHES NOMINAL4.360 INCHES NOMINAL IN, length: 5.900 INCHES NOMINAL5.900 INCHES NOMINAL IN, material: PLASTIC POLYTETRAFLUOROETHYLENE, thickness: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN, aperture_length: 4.980 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-362-0960, 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
5857290
NSN: 5340-01-362-0960
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
shapeRECTANGULAR
width4.360 INCHES NOMINAL4.360 INCHES NOMINAL IN
length5.900 INCHES NOMINAL5.900 INCHES NOMINAL IN
materialPLASTIC POLYTETRAFLUOROETHYLENE
thickness0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
aperture_length4.980 INCHES NOMINAL IN
special_featuresMOUNTING CONFIGURATION: THREE HOLES ON EACH SIDE ALONG LENGTH WITH 2.500 IN. C TO C SPACING IN
features_providedRAISED SURFACE
mounting_hole_typeUNTHREADED
raised_surface_width2.820 INCHES NOMINAL IN
raised_surface_height0.105 INCHES NOMINAL IN
raised_surface_length4.980 INCHES NOMINAL IN
NSN5340-01-362-0960
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5857290 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: 6
•
RAISED SURFACE WIDTH: 2.820 INCHES NOMINAL IN
•
LENGTH: 5.900 INCHES NOMINAL5.900 INCHES NOMINAL IN
•
RAISED SURFACE HEIGHT: 0.105 INCHES NOMINAL IN
•
RAISED SURFACE LENGTH: 4.980 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-22241, TYPE1, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE
•
MOUNTING HOLE DIAMETER: 0.141 INCHES MINIMUM AND 0.149 INCHES MAXIMUM ALL HOLES IN
•
SHAPE: RECTANGULAR
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY6
RAISED SURFACE WIDTH2.820 INCHES NOMINAL IN
LENGTH5.900 INCHES NOMINAL5.900 INCHES NOMINAL IN
RAISED SURFACE HEIGHT0.105 INCHES NOMINAL IN
RAISED SURFACE LENGTH4.980 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-22241, TYPE1, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE
MOUNTING HOLE DIAMETER0.141 INCHES MINIMUM AND 0.149 INCHES MAXIMUM ALL HOLES IN
SHAPERECTANGULAR
FEATURES PROVIDEDRAISED SURFACE
APERTURE LENGTH4.980 INCHES NOMINAL 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 5857290?
5857290 is a PLATE,MOUNTING.
What is the NSN for 5857290?
5857290 is cataloged in the U.S. Government catalog under NSN 5340-01-362-0960. 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.