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A72945 ✓ 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 RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, material_document_and_classification: AIAI OR ASTM A582 TYPE 303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL, part_name_assigned_by_controlling_agency: PACKING FOLLOWER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-481-4528, 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
A72945
NSN: 5330-01-481-4528
FSC: 5330
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
end_item_identificationTARAWA CLASS LHA;2IN CLASS 600 AEROFLOW WITH 6IN & 4IN ANSI B16.5 WELD NECK FLANGE 6IN DOUBLE ACTING SPRING RETURN PISTON ACTUATOR IN
material_document_and_classificationAIAI OR ASTM A582 TYPE 303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyPACKING FOLLOWER
NSN5330-01-481-4528
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A72945 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
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AIAI OR ASTM A582 TYPE 303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYPACKING FOLLOWER
MATERIALSTEEL CORROSION RESISTING OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAIAI OR ASTM A582 TYPE 303 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
END ITEM IDENTIFICATIONTARAWA CLASS LHA;2IN CLASS 600 AEROFLOW WITH 6IN & 4IN ANSI B16.5 WELD NECK FLANGE 6IN DOUBLE ACTING SPRING RETURN PISTON ACTUATOR IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
72945Interchangeable
interchangeable cross-reference
interchangeable
0723372053Interchangeable
interchangeable cross-reference
interchangeable
372053Interchangeable
interchangeable cross-reference
interchangeable
4452BInterchangeable
interchangeable cross-reference
interchangeable
Y109101004N ITEM 6Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A72945?
A72945 is a RETAINER,PACKING.
What parts can replace A72945?
There are 5 known substitutes for A72945: 72945, 0723372053, 372053 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A72945?
A72945 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-481-4528. 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: July 2026