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C424842 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

C424842: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061, hole_diameter: 0.1250 INCHES NOMINAL IN, body_thickness: 0.1250 INCHES NOMINAL IN, outside_diameter: 0.9500 INCHES MINIMUM AND 0.9600 INCHES MAXIMUM IN, surface_treatment: ANODIZE, bolt_circle_diameter: 0.7550 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-126-1841, 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
C424842
NSN: 5340-01-126-1841
FSC: 5340 — Hardware, Commercial
CAGE: 78555 — L-3 COMMUNICATIONS CORPORATION DBA INTERGRATED OPTICAL SYSTEMS-TINSLEY DIV INTEGRATED OPTICAL SYSTEMS - TINSLEY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
hole_diameter0.1250 INCHES NOMINAL IN
body_thickness0.1250 INCHES NOMINAL IN
outside_diameter0.9500 INCHES MINIMUM AND 0.9600 INCHES MAXIMUM IN
surface_treatmentANODIZE
bolt_circle_diameter0.7550 INCHES NOMINAL IN
securing_device_typeSPECIAL
peripheral_shape_styleROUND, MULTI HOLES
bolt_circle_hole_quantity4
cross-sectional_shape_styleFLAT
mounting_opening_shape_styleUNTHREADED HOLE
material_document_and_classificationQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-126-1841
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: C424842 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625, TY 2 MIL SPEC SINGLE TREATMENT RESPONSE
•
BOLT CIRCLE HOLE QUANTITY: 4
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
OUTSIDE DIAMETER: 0.9500 INCHES MINIMUM AND 0.9600 INCHES MAXIMUM IN
•
SECURING DEVICE TYPE: SPECIAL
•
BOLT CIRCLE DIAMETER: 0.7550 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625, TY 2 MIL SPEC SINGLE TREATMENT RESPONSE
BOLT CIRCLE HOLE QUANTITY4
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEFLAT
OUTSIDE DIAMETER0.9500 INCHES MINIMUM AND 0.9600 INCHES MAXIMUM IN
SECURING DEVICE TYPESPECIAL
BOLT CIRCLE DIAMETER0.7550 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE
PERIPHERAL SHAPE STYLEROUND, MULTI HOLES
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)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is C424842?
C424842 is a COVER,ACCESS.
What is the NSN for C424842?
C424842 is cataloged in the U.S. Government catalog under NSN 5340-01-126-1841. 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.