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690177 ITEM 40 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

690177 ITEM 40: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include hole_diameter: 0.562 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 6.625 INCHES NOMINAL IN, aperture_diameter: 3.625 INCHES NOMINAL IN, bolt_circle_diameter: 5.500 INCHES NOMINAL IN, cross-sectional_thickness: 0.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-173-1126, 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
690177 ITEM 40
NSN: 5330-01-173-1126
FSC: 5330 — Packing and Gasket Materials
CAGE: 25204 — ADMIRAL FILTER COMPANY LLC (USA)
SPECIFICATIONS
hole_diameter0.562 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter6.625 INCHES NOMINAL IN
aperture_diameter3.625 INCHES NOMINAL IN
bolt_hole_quantity8
bolt_circle_diameter5.500 INCHES NOMINAL IN
cross-sectional_thickness0.125 INCHES NOMINAL IN
NSN5330-01-173-1126
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 690177 ITEM 40 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
•
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 6.625 INCHES NOMINAL IN
•
APERTURE DIAMETER: 3.625 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 8
•
BOLT CIRCLE DIAMETER: 5.500 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.562 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
OUTSIDE DIAMETER6.625 INCHES NOMINAL IN
APERTURE DIAMETER3.625 INCHES NOMINAL IN
BOLT HOLE QUANTITY8
BOLT CIRCLE DIAMETER5.500 INCHES NOMINAL IN
HOLE DIAMETER0.562 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
SUBSTITUTES & CROSS-REFERENCES 1
203254Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 690177 ITEM 40?
690177 ITEM 40 is a GASKET.
What parts can replace 690177 ITEM 40?
There is 1 known substitute for 690177 ITEM 40: 203254. Substitute compatibility should be verified for your specific system.
What is the NSN for 690177 ITEM 40?
690177 ITEM 40 is cataloged in the U.S. Government catalog under NSN 5330-01-173-1126. 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.