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Technical Data Sheet
PartsTable / COMPONENT / 40441-9 ITEM 32
40441-9 ITEM 32 ✓ 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. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-291-0587, 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
40441-9 ITEM 32
NSN: 5330-01-291-0587
FSC: 5330
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
Part Number40441-9 ITEM 32
NSN5330-01-291-0587
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 40441-9 ITEM 32 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 12
26400Interchangeable
interchangeable cross-reference
interchangeable
5M1066-002Interchangeable
interchangeable cross-reference
interchangeable
5-1378Interchangeable
interchangeable cross-reference
interchangeable
5502-127Interchangeable
interchangeable cross-reference
interchangeable
26400-AInterchangeable
interchangeable cross-reference
interchangeable
13988EInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40441-9 ITEM 32?
40441-9 ITEM 32 is a RETAINER,PACKING.
What parts can replace 40441-9 ITEM 32?
There are 12 known substitutes for 40441-9 ITEM 32: 26400, 5M1066-002, 5-1378 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40441-9 ITEM 32?
40441-9 ITEM 32 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-291-0587. 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