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6760426 — PLUG,EXPANSION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6760426: PLUG,EXPANSION.

The PLUG,EXPANSION is a the manufacturer industrial component. Key specifications include height: 0.438 INCHES NOMINAL IN, material: STEEL, outside_diameter: 1.251 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN, style_designator: CUP, material_thickness: 0.094 INCHES NOMINAL IN, material_document_and_classification: QQ-S-698, COMP 1008 THRU 1015 FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-055-4357, 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
6760426
NSN: 5340-01-055-4357
FSC: 5340 — Hardware, Commercial
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)
SPECIFICATIONS
height0.438 INCHES NOMINAL IN
materialSTEEL
outside_diameter1.251 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN
style_designatorCUP
material_thickness0.094 INCHES NOMINAL IN
material_document_and_classificationQQ-S-698, COMP 1008 THRU 1015 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-055-4357
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6760426 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
•
OUTSIDE DIAMETER: 1.251 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CUP
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-698, COMP 1008 THRU 1015 FED SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL THICKNESS: 0.094 INCHES NOMINAL IN
•
HEIGHT: 0.438 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER1.251 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN
STYLE DESIGNATORCUP
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-698, COMP 1008 THRU 1015 FED SPEC SINGLE MATERIAL RESPONSE
MATERIAL THICKNESS0.094 INCHES NOMINAL IN
HEIGHT0.438 INCHES NOMINAL IN
MATERIALSTEEL
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 6760426?
6760426 is a PLUG,EXPANSION.
What is the NSN for 6760426?
6760426 is cataloged in the U.S. Government catalog under NSN 5340-01-055-4357. 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.