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DAA7278D250-001 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

DAA7278D250-001: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 3.2480 INCHES NOMINAL IN, length: 10.0000 INCHES NOMINAL IN, material: STEEL COMP 1009, inside_width: 3.1300 INCHES NOMINAL IN, inside_length: 1.5410 INCHES NOMINAL IN, body_thickness: 0.2500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-395-1406, 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
DAA7278D250-001
NSN: 5340-01-395-1406
FSC: 5340 — Hardware, Commercial
CAGE: 1W025 — NORTHROP GRUMMAN SYSTEMS CORP DBA NORTHROP GRUMMAN COMPUTING SYSTEMS (USA)
SPECIFICATIONS
width3.2480 INCHES NOMINAL IN
length10.0000 INCHES NOMINAL IN
materialSTEEL COMP 1009
inside_width3.1300 INCHES NOMINAL IN
inside_length1.5410 INCHES NOMINAL IN
body_thickness0.2500 INCHES NOMINAL IN
flange_thickness0.5900 INCHES NOMINAL IN
inside_corner_radius0.2500 INCHES NOMINAL IN
securing_device_typeSPECIAL
peripheral_shape_styleRECTANGLE, NO HOLES
first_recess_inside_height0.0590 INCHES NOMINAL IN
cross-sectional_shape_styleSQUARE OR RECTANGULAR RECESS
NSN5340-01-395-1406
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: DAA7278D250-001 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
•
INSIDE WIDTH: 3.1300 INCHES NOMINAL IN
•
LENGTH: 10.0000 INCHES NOMINAL IN
•
INSIDE LENGTH: 1.5410 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.5900 INCHES NOMINAL IN
•
INSIDE CORNER RADIUS: 0.2500 INCHES NOMINAL IN
•
FIRST RECESS INSIDE HEIGHT: 0.0590 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-A-569 ASSN STD SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE OR RECTANGULAR RECESS
TECHNICAL CHARACTERISTICS
INSIDE WIDTH3.1300 INCHES NOMINAL IN
LENGTH10.0000 INCHES NOMINAL IN
INSIDE LENGTH1.5410 INCHES NOMINAL IN
FLANGE THICKNESS0.5900 INCHES NOMINAL IN
INSIDE CORNER RADIUS0.2500 INCHES NOMINAL IN
FIRST RECESS INSIDE HEIGHT0.0590 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A-569 ASSN STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLESQUARE OR RECTANGULAR RECESS
SECURING DEVICE TYPESPECIAL
SPECIAL FEATURESTHERE ARE TWO SETS OF TWO HOLES IN THE SIDE OF THE COVER; THE FIRST SET OF TWO HOLES IS LOCATED AT RIGHT END AND HAS A DIAMETER OF 0.386 IN PLUS 0.006 IN AND MINUS 0.001 IN.; THE SECOND SET OF HOLES IS LOCATED ON LEFT END SIDE AND HAS A DIA. OF 0.3230 IN WITH VARIATION OF PLUS 0.006 IN AND MINUS 0.0010 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)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is DAA7278D250-001?
DAA7278D250-001 is a COVER,ACCESS.
What is the NSN for DAA7278D250-001?
DAA7278D250-001 is cataloged in the U.S. Government catalog under NSN 5340-01-395-1406. This indicates validated use in U.S. government and defense supply chains.
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