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116610H1 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

116610H1: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include body_thickness: 0.250 INCHES NOMINAL IN, inside_diameter: 3.875 INCHES NOMINAL IN, flange_thickness: 0.438 INCHES NOMINAL IN, outside_diameter: 6.250 INCHES NOMINAL IN, bolt_circle_diameter: 4.747 INCHES MINIMUM AND 4.749 INCHES MAXIMUM IN, inside_corner_radius: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-174-1178, 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
116610H1
NSN: 5340-01-174-1178
FSC: 5340 — Hardware, Commercial
CAGE: 0SAT8 — KOMATSU AMERICA CORP. (USA)
SPECIFICATIONS
body_thickness0.250 INCHES NOMINAL IN
inside_diameter3.875 INCHES NOMINAL IN
flange_thickness0.438 INCHES NOMINAL IN
outside_diameter6.250 INCHES NOMINAL IN
bolt_circle_diameter4.747 INCHES MINIMUM AND 4.749 INCHES MAXIMUM IN
inside_corner_radius0.312 INCHES NOMINAL IN
peripheral_shape_styleROUND, MULTI HOLES
end_item_identification3930-01-054-3833
bolt_circle_hole_quantity6
first_recess_inside_height0.936 INCHES NOMINAL IN
cross-sectional_shape_styleCIRCULAR RECESS
NSN5340-01-174-1178
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 116610H1 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
•
FLANGE THICKNESS: 0.438 INCHES NOMINAL IN
•
BOLT CIRCLE HOLE QUANTITY: 6
•
INSIDE CORNER RADIUS: 0.312 INCHES NOMINAL IN
•
FIRST RECESS INSIDE HEIGHT: 0.936 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: CIRCULAR RECESS
•
OUTSIDE DIAMETER: 6.250 INCHES NOMINAL IN
•
INSIDE DIAMETER: 3.875 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 4.747 INCHES MINIMUM AND 4.749 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FLANGE THICKNESS0.438 INCHES NOMINAL IN
BOLT CIRCLE HOLE QUANTITY6
INSIDE CORNER RADIUS0.312 INCHES NOMINAL IN
FIRST RECESS INSIDE HEIGHT0.936 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLECIRCULAR RECESS
OUTSIDE DIAMETER6.250 INCHES NOMINAL IN
INSIDE DIAMETER3.875 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER4.747 INCHES MINIMUM AND 4.749 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEROUND, MULTI HOLES
END ITEM IDENTIFICATION3930-01-054-3833
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 116610H1?
116610H1 is a COVER,ACCESS.
What is the NSN for 116610H1?
116610H1 is cataloged in the U.S. Government catalog under NSN 5340-01-174-1178. 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.