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Technical Data Sheet
102748 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The GASKET is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 400 OVERALL, outside_diameter: 1.156 INCHES MINIMUM AND 1.188 INCHES MAXIMUM IN, aperture_diameter: 0.875 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN, cross-sectional_thickness: 0.094 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN, cross-sectional_shape_style: HOLLOW, material_document_and_classification: AMS 4730 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-579-8101, 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
102748
NSN: 5330-00-579-8101
FSC: 5330
CAGE: 06481 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 OVERALL
outside_diameter1.156 INCHES MINIMUM AND 1.188 INCHES MAXIMUM IN
aperture_diameter0.875 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN
cross-sectional_thickness0.094 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
cross-sectional_shape_styleHOLLOW
material_document_and_classificationAMS 4730 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-579-8101
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 102748 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: 0.094 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
OUTSIDE DIAMETER: 1.156 INCHES MINIMUM AND 1.188 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLE: HOLLOW
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 4730 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL: NICKEL ALLOY 400 OVERALL
APERTURE DIAMETER: 0.875 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL THICKNESS0.094 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.156 INCHES MINIMUM AND 1.188 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLEHOLLOW
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4730 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY 400 OVERALL
APERTURE DIAMETER0.875 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
6511Interchangeable
interchangeable cross-reference
interchangeable
B7T77716AInterchangeable
interchangeable cross-reference
interchangeable
104923Interchangeable
interchangeable cross-reference
interchangeable
FF-B-187AInterchangeable
interchangeable cross-reference
interchangeable
6A3PC51Interchangeable
interchangeable cross-reference
interchangeable
6A3-51Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 102748?
102748 is a GASKET.
What parts can replace 102748?
There are 16 known substitutes for 102748: 6511, B7T77716A, 104923 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 102748?
102748 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-579-8101. This indicates validated use in U.S. government and defense supply chains.
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