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11021257 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

11021257: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 21.000 INCHES MINIMUM AND 21.120 INCHES MAXIMUM IN, length: 26.440 INCHES MINIMUM AND 26.560 INCHES MAXIMUM IN, material: ALUMINUM ALLOY 3003, hole_diameter: 0.192 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN, body_thickness: 0.090 INCHES NOMINAL IN, special_features: 6 MTG HOLES EQUALLY SPACED ON SIDE ALONG LEGNTH. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-358-8505, 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
11021257
NSN: 5340-01-358-8505
FSC: 5340 — Hardware, Commercial
CAGE: 59678 — COMBAT CAPABILITIES DEVELOPMENT COMMAND ARMAMENTS CENTER DBA US ARMY COMBAT CAPABILITIES DEVELOPMENT COMMAND ARMAMENTS CENTER (USA)
SPECIFICATIONS
width21.000 INCHES MINIMUM AND 21.120 INCHES MAXIMUM IN
length26.440 INCHES MINIMUM AND 26.560 INCHES MAXIMUM IN
materialALUMINUM ALLOY 3003
hole_diameter0.192 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
body_thickness0.090 INCHES NOMINAL IN
special_features6 MTG HOLES EQUALLY SPACED ON SIDE ALONG LEGNTH
securing_device_typeSPECIAL
peripheral_shape_styleRECTANGLE, NO HOLES
mounting_opening_shape_styleUNTHREADED HOLE
material_document_and_classificationQQ-A-250/2 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-358-8505
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 11021257 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
•
LENGTH: 26.440 INCHES MINIMUM AND 26.560 INCHES MAXIMUM IN
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/2 FED SPEC SINGLE MATERIAL RESPONSE
•
SECURING DEVICE TYPE: SPECIAL
•
PERIPHERAL SHAPE STYLE: RECTANGLE, NO HOLES
•
WIDTH: 21.000 INCHES MINIMUM AND 21.120 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY 3003
TECHNICAL CHARACTERISTICS
LENGTH26.440 INCHES MINIMUM AND 26.560 INCHES MAXIMUM IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/2 FED SPEC SINGLE MATERIAL RESPONSE
SECURING DEVICE TYPESPECIAL
SPECIAL FEATURES6 MTG HOLES EQUALLY SPACED ON SIDE ALONG LEGNTH
PERIPHERAL SHAPE STYLERECTANGLE, NO HOLES
WIDTH21.000 INCHES MINIMUM AND 21.120 INCHES MAXIMUM IN
MATERIALALUMINUM ALLOY 3003
HOLE DIAMETER0.192 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
BODY THICKNESS0.090 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 11021257?
11021257 is a COVER,ACCESS.
What is the NSN for 11021257?
11021257 is cataloged in the U.S. Government catalog under NSN 5340-01-358-8505. This indicates validated use in U.S. government and defense supply chains.
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