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6855251-1 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6855251-1: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 10.094 INCHES NOMINAL IN, length: 22.530 INCHES NOMINAL IN, material: ALUMINUM ALLOY 6061, inside_angle: 0.060 RADIANS NOMINAL, corner_radius: 0.250 INCHES NOMINAL IN, body_thickness: 0.562 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-143-1056, 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
6855251-1
NSN: 5340-01-143-1056
FSC: 5340 — Hardware, Commercial
CAGE: 03640 — LOCKHEED MARTIN CORPORATION DIV ROTARY AND MISSION SYSTEMS (USA)
SPECIFICATIONS
width10.094 INCHES NOMINAL IN
length22.530 INCHES NOMINAL IN
materialALUMINUM ALLOY 6061
inside_angle0.060 RADIANS NOMINAL
corner_radius0.250 INCHES NOMINAL IN
body_thickness0.562 INCHES NOMINAL IN
surface_treatmentANODIZE
fsc_application_dataELECTRONIC COUNTERMEASURES EF-111A A
securing_device_typeSPECIAL
peripheral_shape_styleRECTANGLE, NO HOLES
first_recess_inside_height0.500 INCHES NOMINAL IN
cross-sectional_shape_styleSQUARE OR RECTANGULAR RECESS
NSN5340-01-143-1056
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6855251-1 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: ELECTRONIC COUNTERMEASURES EF-111A A
•
CORNER RADIUS: 0.250 INCHES NOMINAL IN
•
LENGTH: 22.530 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE
•
FIRST RECESS INSIDE HEIGHT: 0.500 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/1 FED SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE OR RECTANGULAR RECESS
•
SECURING DEVICE TYPE: SPECIAL
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAELECTRONIC COUNTERMEASURES EF-111A A
CORNER RADIUS0.250 INCHES NOMINAL IN
LENGTH22.530 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE
FIRST RECESS INSIDE HEIGHT0.500 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/1 FED SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLESQUARE OR RECTANGULAR RECESS
SECURING DEVICE TYPESPECIAL
SURFACE TREATMENTANODIZE
PERIPHERAL SHAPE STYLERECTANGLE, NO 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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6855251-1?
6855251-1 is a COVER,ACCESS.
What is the NSN for 6855251-1?
6855251-1 is cataloged in the U.S. Government catalog under NSN 5340-01-143-1056. This indicates validated use in U.S. government and defense supply chains.
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