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11687628 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

11687628: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 3.340 INCHES NOMINAL IN, length: 4.420 INCHES NOMINAL IN, material: ALUMINUM ALLOY 2024, slot_width: 0.560 INCHES MINIMUM AND 0.680 INCHES MAXIMUM IN, corner_radius: 1.220 INCHES MINIMUM AND 1.280 INCHES MAXIMUM IN, surface_treatment: ANODIZE. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-235-3976, 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
11687628
NSN: 5340-00-235-3976
FSC: 5340 — Hardware, Commercial
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
width3.340 INCHES NOMINAL IN
length4.420 INCHES NOMINAL IN
materialALUMINUM ALLOY 2024
slot_width0.560 INCHES MINIMUM AND 0.680 INCHES MAXIMUM IN
corner_radius1.220 INCHES MINIMUM AND 1.280 INCHES MAXIMUM IN
surface_treatmentANODIZE
fsc_application_dataSIGHTING STATIONS AIRCRAFT TURRET
securing_device_typeTHREADED FASTENER
mounting_opening_shape_styleOPEN HORIZONTAL SLOT
material_document_and_classificationQQ-A-250/4 FED SPEC SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationMIL-A-8625,TY 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE
NSN5340-00-235-3976
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 11687628 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: SIGHTING STATIONS AIRCRAFT TURRET
•
CORNER RADIUS: 1.220 INCHES MINIMUM AND 1.280 INCHES MAXIMUM IN
•
LENGTH: 4.420 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TY 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE
•
MOUNTING OPENING SHAPE STYLE: OPEN HORIZONTAL SLOT
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/4 FED SPEC SINGLE MATERIAL RESPONSE
•
SECURING DEVICE TYPE: THREADED FASTENER
•
SURFACE TREATMENT: ANODIZE
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATASIGHTING STATIONS AIRCRAFT TURRET
CORNER RADIUS1.220 INCHES MINIMUM AND 1.280 INCHES MAXIMUM IN
LENGTH4.420 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE
MOUNTING OPENING SHAPE STYLEOPEN HORIZONTAL SLOT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/4 FED SPEC SINGLE MATERIAL RESPONSE
SECURING DEVICE TYPETHREADED FASTENER
SURFACE TREATMENTANODIZE
WIDTH3.340 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 2024
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 1
717935-5Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 11687628?
11687628 is a COVER,ACCESS.
What parts can replace 11687628?
There is 1 known substitute for 11687628: 717935-5. Substitute compatibility should be verified for your specific system.
What is the NSN for 11687628?
11687628 is cataloged in the U.S. Government catalog under NSN 5340-00-235-3976. This indicates validated use in U.S. government and defense supply chains.
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