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8421655 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8421655: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: STEEL, hole_diameter: 0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN, body_thickness: 0.063 INCHES NOMINAL IN, outside_diameter: 6.250 INCHES NOMINAL IN, special_features: CIRCLE CUT BY CHORD 2.625 FROM CENTERLINE, surface_treatment: PHOSPHATE. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-650-4580, 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
8421655
NSN: 5340-00-650-4580
FSC: 5340 — Hardware, Commercial
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialSTEEL
hole_diameter0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
body_thickness0.063 INCHES NOMINAL IN
outside_diameter6.250 INCHES NOMINAL IN
special_featuresCIRCLE CUT BY CHORD 2.625 FROM CENTERLINE
surface_treatmentPHOSPHATE
bolt_circle_diameter5.750 INCHES NOMINAL IN
fsc_application_dataROCKET LAUNCHER,762MM MM
securing_device_typeTHREADED FASTENER
peripheral_shape_styleROUND, MULTI HOLES
bolt_circle_hole_quantity4
cross-sectional_shape_styleFLAT W/OPEN CENTER
NSN5340-00-650-4580
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8421655 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
•
FSC APPLICATION DATA: ROCKET LAUNCHER,762MM MM
•
BOLT CIRCLE HOLE QUANTITY: 4
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-11415 CL E MIL SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT W/OPEN CENTER
•
OUTSIDE DIAMETER: 6.250 INCHES NOMINAL IN
•
SECURING DEVICE TYPE: THREADED FASTENER
•
BOLT CIRCLE DIAMETER: 5.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAROCKET LAUNCHER,762MM MM
BOLT CIRCLE HOLE QUANTITY4
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-11415 CL E MIL SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEFLAT W/OPEN CENTER
OUTSIDE DIAMETER6.250 INCHES NOMINAL IN
SECURING DEVICE TYPETHREADED FASTENER
BOLT CIRCLE DIAMETER5.750 INCHES NOMINAL IN
SPECIAL FEATURESCIRCLE CUT BY CHORD 2.625 FROM CENTERLINE
SURFACE TREATMENTPHOSPHATE
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
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 8421655?
8421655 is a COVER,ACCESS.
What is the NSN for 8421655?
8421655 is cataloged in the U.S. Government catalog under NSN 5340-00-650-4580. This indicates validated use in U.S. government and defense supply chains.
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