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DAA7257A137-003 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

DAA7257A137-003: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 39.500 INCHES NOMINAL IN, length: 19.600 INCHES NOMINAL IN, body_thickness: 0.400 INCHES NOMINAL IN, peripheral_shape_style: RECTANGLE, NO HOLES, cross-sectional_shape_style: FLAT, material_document_and_classification: DAA7257+114-001 MFR REF SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-394-0426, 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
DAA7257A137-003
NSN: 5340-01-394-0426
FSC: 5340 — Hardware, Commercial
CAGE: 1W025 — NORTHROP GRUMMAN SYSTEMS CORP DBA NORTHROP GRUMMAN COMPUTING SYSTEMS (USA)
SPECIFICATIONS
width39.500 INCHES NOMINAL IN
length19.600 INCHES NOMINAL IN
body_thickness0.400 INCHES NOMINAL IN
peripheral_shape_styleRECTANGLE, NO HOLES
cross-sectional_shape_styleFLAT
material_document_and_classificationDAA7257+114-001 MFR REF SINGLE MATERIAL RESPONSE
NSN5340-01-394-0426
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: DAA7257A137-003 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: 19.600 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: DAA7257+114-001 MFR REF SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
PERIPHERAL SHAPE STYLE: RECTANGLE, NO HOLES
•
WIDTH: 39.500 INCHES NOMINAL IN
•
BODY THICKNESS: 0.400 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH19.600 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONDAA7257+114-001 MFR REF SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEFLAT
PERIPHERAL SHAPE STYLERECTANGLE, NO HOLES
WIDTH39.500 INCHES NOMINAL IN
BODY THICKNESS0.400 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 DAA7257A137-003?
DAA7257A137-003 is a COVER,ACCESS.
What is the NSN for DAA7257A137-003?
DAA7257A137-003 is cataloged in the U.S. Government catalog under NSN 5340-01-394-0426. This indicates validated use in U.S. government and defense supply chains.
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