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8691525 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8691525: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER NEOPRENE OVERALL, hole_diameter: 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM ALL HOLES IN, overall_width: 4.990 INCHES MINIMUM AND 5.010 INCHES MAXIMUM IN, aperture_width: 4.190 INCHES MINIMUM AND 4.210 INCHES MAXIMUM IN, overall_length: 6.990 INCHES MINIMUM AND 7.010 INCHES MAXIMUM IN, aperture_length: 6.190 INCHES MINIMUM AND 6.210 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-657-2743, 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
8691525
NSN: 5330-01-657-2743
FSC: 5330 — Packing and Gasket Materials
CAGE: 549W5 — SPECTRAL LABS INCORPORATED DBA SPECTRAL LABS (USA)
SPECIFICATIONS
materialRUBBER NEOPRENE OVERALL
hole_diameter0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM ALL HOLES IN
overall_width4.990 INCHES MINIMUM AND 5.010 INCHES MAXIMUM IN
aperture_width4.190 INCHES MINIMUM AND 4.210 INCHES MAXIMUM IN
overall_length6.990 INCHES MINIMUM AND 7.010 INCHES MAXIMUM IN
aperture_length6.190 INCHES MINIMUM AND 6.210 INCHES MAXIMUM IN
style_designatorNON-CIRCULAR
bolt_hole_quantity10
end_item_identificationMETER
cross-sectional_thickness0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-R-6855, CLASS 2, TYPE B, GRADE 60, ADHESIVE BACKED MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-657-2743
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8691525 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: 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
•
OUTSIDE EDGE TO INSIDE EDGE SMALLEST DISTANCE ALONG WIDTH: 0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: NON-CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-6855, CLASS 2, TYPE B, GRADE 60, ADHESIVE BACKED MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE WIDTH: 4.190 INCHES MINIMUM AND 4.210 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
OUTSIDE EDGE TO INSIDE EDGE SMALLEST DISTANCE ALONG WIDTH0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
STYLE DESIGNATORNON-CIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6855, CLASS 2, TYPE B, GRADE 60, ADHESIVE BACKED MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH6.990 INCHES MINIMUM AND 7.010 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH4.990 INCHES MINIMUM AND 5.010 INCHES MAXIMUM IN
APERTURE WIDTH4.190 INCHES MINIMUM AND 4.210 INCHES MAXIMUM IN
OUTSIDE CORNER BEVEL LENGTH ALONG WIDTH0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
APERTURE LENGTH6.190 INCHES MINIMUM AND 6.210 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8691525?
8691525 is a GASKET.
What is the NSN for 8691525?
8691525 is cataloged in the U.S. Government catalog under NSN 5330-01-657-2743. 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.