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18-10453-1 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

18-10453-1: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 8.500 INCHES NOMINAL IN, length: 9.000 INCHES NOMINAL IN, material: ALUMINUM ALLOY 7075, special_features: MARK PER IM-23 TYPE I, peripheral_shape_style: RECTANGLE, NO HOLES, material_document_and_classification: QQ-A-250/12,T6 FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-043-5948, 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
18-10453-1
NSN: 5340-01-043-5948
FSC: 5340 — Hardware, Commercial
CAGE: 79U29 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
width8.500 INCHES NOMINAL IN
length9.000 INCHES NOMINAL IN
materialALUMINUM ALLOY 7075
special_featuresMARK PER IM-23 TYPE I
peripheral_shape_styleRECTANGLE, NO HOLES
material_document_and_classificationQQ-A-250/12,T6 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-043-5948
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 18-10453-1 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: 9.000 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/12,T6 FED SPEC SINGLE MATERIAL RESPONSE
•
PERIPHERAL SHAPE STYLE: RECTANGLE, NO HOLES
•
WIDTH: 8.500 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY 7075
TECHNICAL CHARACTERISTICS
LENGTH9.000 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/12,T6 FED SPEC SINGLE MATERIAL RESPONSE
SPECIAL FEATURESMARK PER IM-23 TYPE I
PERIPHERAL SHAPE STYLERECTANGLE, NO HOLES
WIDTH8.500 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 7075
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 18-10453-1?
18-10453-1 is a COVER,ACCESS.
What is the NSN for 18-10453-1?
18-10453-1 is cataloged in the U.S. Government catalog under NSN 5340-01-043-5948. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.