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Technical Data Sheet
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5HA12 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5HA12: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include outside_diameter: 255.8 MILLIMETERS NOMINAL MM, special_features: MATERIAL METAL, style_designator: CIRCULAR, aperture_diameter: 245.57 MILLIMETERS NOMINAL MM, end_item_identification: CONVERTER HOUSING (PTO),2320-01-097-0260 TRUCK CARGO; MRAP BUFFALO MK2A2, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-502-7246, 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
5HA12
NSN: 5330-01-502-7246
FSC: 5330 — Packing and Gasket Materials
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
outside_diameter255.8 MILLIMETERS NOMINAL MM
special_featuresMATERIAL METAL
style_designatorCIRCULAR
aperture_diameter245.57 MILLIMETERS NOMINAL MM
end_item_identificationCONVERTER HOUSING (PTO),2320-01-097-0260 TRUCK CARGO; MRAP BUFFALO MK2A2
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
reference_data_and_literatureALLISON HD/B 500 SERIES ON-HIGHWAY TRANSMISSIONS PARTS CATALOG,GROUP 34-545,CONVERTER HOUSING,FIGURE 34B WITH PTO,REF NUMBER 9,PG 34-2.1
part_name_assigned_by_controlling_agencySEALRING 245.57 ID
NSN5330-01-502-7246
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5HA12 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
•
REFERENCE DATA AND LITERATURE: ALLISON HD/B 500 SERIES ON-HIGHWAY TRANSMISSIONS PARTS CATALOG,GROUP 34-545,CONVERTER HOUSING,FIGURE 34B WITH PTO,REF NUMBER 9,PG 34-2.1
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 255.8 MILLIMETERS NOMINAL MM
•
APERTURE DIAMETER: 245.57 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
REFERENCE DATA AND LITERATUREALLISON HD/B 500 SERIES ON-HIGHWAY TRANSMISSIONS PARTS CATALOG,GROUP 34-545,CONVERTER HOUSING,FIGURE 34B WITH PTO,REF NUMBER 9,PG 34-2.1
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER255.8 MILLIMETERS NOMINAL MM
APERTURE DIAMETER245.57 MILLIMETERS NOMINAL MM
SPECIAL FEATURESMATERIAL METAL
PART NAME ASSIGNED BY CONTROLLING AGENCYSEALRING 245.57 ID
END ITEM IDENTIFICATIONCONVERTER HOUSING (PTO),2320-01-097-0260 TRUCK CARGO; MRAP BUFFALO MK2A2
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 1
23047945Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5HA12?
5HA12 is a GASKET.
What parts can replace 5HA12?
There is 1 known substitute for 5HA12: 23047945. Substitute compatibility should be verified for your specific system.
What is the NSN for 5HA12?
5HA12 is cataloged in the U.S. Government catalog under NSN 5330-01-502-7246. This indicates validated use in U.S. government and defense supply chains.
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