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135-7657 — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

135-7657: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, center_hole_diameter: 1.937 INCHES NOMINAL IN, cross-sectional_height: 0.093 INCHES NOMINAL IN, material_document_and_classification: SAE CL II MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-354-7245, 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
135-7657
NSN: 5330-01-354-7245
FSC: 5330 — Packing and Gasket Materials
CAGE: 25184 — PARKER HANNIFIN CORPORATION DIV O-RING DIVISION (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
center_hole_diameter1.937 INCHES NOMINAL IN
cross-sectional_height0.093 INCHES NOMINAL IN
material_document_and_classificationSAE CL II MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-354-7245
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 135-7657 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 HEIGHT: 0.093 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE CL II MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CENTER HOLE DIAMETER: 1.937 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.093 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE CL II MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE DIAMETER1.937 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 135-7657?
135-7657 is a PACKING,PREFORMED.
What is the NSN for 135-7657?
135-7657 is cataloged in the U.S. Government catalog under NSN 5330-01-354-7245. 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.