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687-4438-002 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

687-4438-002: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 1.000 INCHES NOMINAL IN, length: 2.900 INCHES NOMINAL IN, material: ALUMINUM ALLOY 6061, hole_diameter: 0.102 INCHES NOMINAL IN, body_thickness: 0.040 INCHES NOMINAL IN, special_features: ORIGINAL NAME, PLATE, COVER-SPLITTER; CONTAINS 1 EXTRA HOLE, 0.102 IN. DIA, SPOT FACE 0.188 IN.

DIA IN. This part is cataloged in the U.S. Government catalog under NSN 5340-01-390-3618, 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
687-4438-002
NSN: 5340-01-390-3618
FSC: 5340 — Hardware, Commercial
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
width1.000 INCHES NOMINAL IN
length2.900 INCHES NOMINAL IN
materialALUMINUM ALLOY 6061
hole_diameter0.102 INCHES NOMINAL IN
body_thickness0.040 INCHES NOMINAL IN
special_featuresORIGINAL NAME, PLATE, COVER-SPLITTER; CONTAINS 1 EXTRA HOLE, 0.102 IN. DIA, SPOT FACE 0.188 IN. DIA IN
surface_treatmentTIN
securing_device_typeSPECIAL
peripheral_shape_styleRECTANGLE, MULTI HOLES
end_item_identificationPACER DAWN
hole_quantity_along_width2
first_recess_inside_height0.085 INCHES NOMINAL IN
NSN5340-01-390-3618
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 687-4438-002 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: 2.900 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-T-10727 MIL SPEC SINGLE TREATMENT RESPONSE
•
FIRST RECESS INSIDE HEIGHT: 0.085 INCHES NOMINAL IN
•
HOLE QUANTITY ALONG LENGTH: 6
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: RECESS, SAME SHAPE AS THE PERIPHERY
•
SECURING DEVICE TYPE: SPECIAL
TECHNICAL CHARACTERISTICS
LENGTH2.900 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-T-10727 MIL SPEC SINGLE TREATMENT RESPONSE
FIRST RECESS INSIDE HEIGHT0.085 INCHES NOMINAL IN
HOLE QUANTITY ALONG LENGTH6
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLERECESS, SAME SHAPE AS THE PERIPHERY
SECURING DEVICE TYPESPECIAL
HOLE QUANTITY ALONG WIDTH2
SPECIAL FEATURESORIGINAL NAME, PLATE, COVER-SPLITTER; CONTAINS 1 EXTRA HOLE, 0.102 IN. DIA, SPOT FACE 0.188 IN. DIA 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 687-4438-002?
687-4438-002 is a COVER,ACCESS.
What is the NSN for 687-4438-002?
687-4438-002 is cataloged in the U.S. Government catalog under NSN 5340-01-390-3618. This indicates validated use in U.S. government and defense supply chains.
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