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9177891 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

9177891: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 5.625 INCHES NOMINAL IN, length: 6.875 INCHES NOMINAL IN, material: ALUMINUM ALLOY 5052, body_thickness: 0.312 INCHES NOMINAL IN, securing_device_type: SPECIAL, peripheral_shape_style: RECTANGLE, MULTI HOLES. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-916-8747, 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
9177891
NSN: 5340-00-916-8747
FSC: 5340 — Hardware, Commercial
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
width5.625 INCHES NOMINAL IN
length6.875 INCHES NOMINAL IN
materialALUMINUM ALLOY 5052
body_thickness0.312 INCHES NOMINAL IN
securing_device_typeSPECIAL
peripheral_shape_styleRECTANGLE, MULTI HOLES
cross-sectional_shape_styleFLAT
mounting_opening_shape_styleCLOSED VERTICAL SLOT
material_document_and_classificationQQ-A-318 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-00-916-8747
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 9177891 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: 6.875 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: CLOSED VERTICAL SLOT
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-318 FED SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
SECURING DEVICE TYPE: SPECIAL
•
PERIPHERAL SHAPE STYLE: RECTANGLE, MULTI HOLES
•
WIDTH: 5.625 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY 5052
TECHNICAL CHARACTERISTICS
LENGTH6.875 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLECLOSED VERTICAL SLOT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-318 FED SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPESPECIAL
PERIPHERAL SHAPE STYLERECTANGLE, MULTI HOLES
WIDTH5.625 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 5052
BODY THICKNESS0.312 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9177891?
9177891 is a COVER,ACCESS.
What is the NSN for 9177891?
9177891 is cataloged in the U.S. Government catalog under NSN 5340-00-916-8747. 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.