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Technical Data Sheet
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748361 — Technical Data Sheet

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— · 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 STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include diameter: 0.375 INCHES NOMINAL IN, material: STEEL OVERALL, drive_type: SLOTTED, grip_length: 0.765 INCHES NOMINAL IN, surface_treatment: CADMIUM AND CHROMATE OVERALL, securing_device_type: WASHER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5331-01-030-1825, 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
748361
NSN: 5331-01-030-1825
FSC: 5331 — O-RING
CAGE: D8093 — MAHLE INDUSTRIAL THERMAL SYSTEMS GMBH & CO. KG (DEU)
SPECIFICATIONS
diameter0.375 INCHES NOMINAL IN
materialSTEEL OVERALL
drive_typeSLOTTED
grip_length0.765 INCHES NOMINAL IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
securing_device_typeWASHER
turnlock_stud_head_styleFILLISTER
stud_shank_major_diameter0.240 INCHES NOMINAL IN
turnlock_stud_shank_styleSTUD SHANK
material_accommodated_thickness0.610 INCHES MINIMUM AND 0.629 INCHES MAXIMUM IN
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5331-01-030-1825
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 748361 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
N15133InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
D2000-M3CH714A25B34E016E036InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2-122 N219-70InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2-232N674-70InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
N0674-70 2-232InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
CAT.2-232InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 748361?
748361 is a STUD,TURNLOCK FASTENER.
What parts can replace 748361?
There are 14 known substitutes for 748361: N15133, D2000-M3CH714A25B34E016E036, 2-122 N219-70 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 748361?
748361 is cataloged in the Federal Logistics Information System under NSN 5331-01-030-1825. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026