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Technical Data Sheet
PartsTable / COMPONENT / 7409940
7409940 ✓ 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

PARTS KIT,SEAL REPLACEMENT,MECHA. Key specifications include document_type: BILL OF MATERIAL, document_source: 61465, document_identification: M305832K, component_document_origin: INDUSTRIAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-740-9940, 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
7409940
NSN: 5330-00-740-9940
FSC: 5330
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
document_typeBILL OF MATERIAL
document_source61465
component_quantity2
document_identificationM305832K
component_document_originINDUSTRIAL
component_document_page_number1
NSN5330-00-740-9940
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7409940 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
•
DOCUMENT TYPE: BILL OF MATERIAL
•
COMPONENT DOCUMENT PAGE NUMBER: 1
•
COMPONENT QUANTITY: 2
•
DOCUMENT IDENTIFICATION: M305832K
•
COMPONENT DOCUMENT ORIGIN: INDUSTRIAL
•
DOCUMENT SOURCE: 61465
TECHNICAL CHARACTERISTICS (FLIS)
DOCUMENT TYPEBILL OF MATERIAL
COMPONENT DOCUMENT PAGE NUMBER1
COMPONENT QUANTITY2
DOCUMENT IDENTIFICATIONM305832K
COMPONENT DOCUMENT ORIGININDUSTRIAL
DOCUMENT SOURCE61465
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
95-0452Interchangeable
interchangeable cross-reference
interchangeable
FF-B-187/1Interchangeable
interchangeable cross-reference
interchangeable
374Interchangeable
interchangeable cross-reference
interchangeable
431751Interchangeable
interchangeable cross-reference
interchangeable
C431751Interchangeable
interchangeable cross-reference
interchangeable
KC2742Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7409940?
7409940 is a PARTS KIT,SEAL REPLACEMENT,MECHA.
What parts can replace 7409940?
There are 13 known substitutes for 7409940: 95-0452, FF-B-187/1, 374 and 10 more. Substitute compatibility should be verified for your specific system.
Is 7409940 still available?
7409940 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026