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HDU58 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

HDU58: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 8.5620 INCHES NOMINAL IN, length: 8.2500 INCHES NOMINAL IN, hole_diameter: 0.1880 INCHES NOMINAL IN, securing_device_type: SPECIAL, peripheral_shape_style: RECTANGLE, FOUR HOLES, cross-sectional_shape_style: SQUARE OR RECTANGULAR RECESS. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-426-8773, 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
HDU58
NSN: 5340-01-426-8773
FSC: 5340 — Hardware, Commercial
CAGE: 17032 — VALAD ELECTRIC HEATING CORP. (USA)
SPECIFICATIONS
width8.5620 INCHES NOMINAL IN
length8.2500 INCHES NOMINAL IN
hole_diameter0.1880 INCHES NOMINAL IN
securing_device_typeSPECIAL
peripheral_shape_styleRECTANGLE, FOUR HOLES
cross-sectional_shape_styleSQUARE OR RECTANGULAR RECESS
mounting_opening_shape_styleUNTHREADED HOLE
NSN5340-01-426-8773
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: HDU58 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: 8.2500 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE OR RECTANGULAR RECESS
•
SECURING DEVICE TYPE: SPECIAL
•
PERIPHERAL SHAPE STYLE: RECTANGLE, FOUR HOLES
•
WIDTH: 8.5620 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.1880 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH8.2500 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
CROSS-SECTIONAL SHAPE STYLESQUARE OR RECTANGULAR RECESS
SECURING DEVICE TYPESPECIAL
PERIPHERAL SHAPE STYLERECTANGLE, FOUR HOLES
WIDTH8.5620 INCHES NOMINAL IN
HOLE DIAMETER0.1880 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 HDU58?
HDU58 is a COVER,ACCESS.
What is the NSN for HDU58?
HDU58 is cataloged in the U.S. Government catalog under NSN 5340-01-426-8773. 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.