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Technical Data Sheet
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438-6404469-16 — STOP,MECHANICAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

438-6404469-16: STOP,MECHANICAL.

The STOP,MECHANICAL is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-353-6103, 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
438-6404469-16
NSN: 5340-01-353-6103
FSC: 5340 — Hardware, Commercial
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
Part Number438-6404469-16
NSN5340-01-353-6103
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 438-6404469-16 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
SUBSTITUTES & CROSS-REFERENCES 7
6404450 ASSY 98Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
803-6404450-AY9 7Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
564-6404373-118Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
432-6404420-65Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
211033172Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
803-6404450-AY98Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 438-6404469-16?
438-6404469-16 is a STOP,MECHANICAL.
What parts can replace 438-6404469-16?
There are 7 known substitutes for 438-6404469-16: 6404450 ASSY 98, 803-6404450-AY9 7, 564-6404373-118 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 438-6404469-16?
438-6404469-16 is cataloged in the U.S. Government catalog under NSN 5340-01-353-6103. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.