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A53609 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A53609: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER, thread_size: 5/16-18, shank_length: 1.500 INCHES NOMINAL IN, overall_height: 2.313 INCHES NOMINAL IN, style_designator: FLAT RECESSED TOP THREADED STUD, fastening_device_size: 5/16-18, 1-1/2IN. LG IN.

This part is cataloged in the U.S. Government catalog under NSN 5340-00-498-6611, 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
A53609
NSN: 5340-00-498-6611
FSC: 5340 — Hardware, Commercial
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER
thread_size5/16-18
shank_length1.500 INCHES NOMINAL IN
overall_height2.313 INCHES NOMINAL IN
style_designatorFLAT RECESSED TOP THREADED STUD
fastening_device_size5/16-18, 1-1/2IN. LG IN
fastening_device_typeBOLTS
outside/top_flange_diameter1.000 INCHES NOMINAL IN
NSN5340-00-498-6611
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A53609 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
•
OUTSIDE/TOP FLANGE DIAMETER: 1.000 INCHES NOMINAL IN
•
FASTENING DEVICE TYPE: BOLTS
•
SHANK LENGTH: 1.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT RECESSED TOP THREADED STUD
•
THREAD SIZE: 5/16-18
•
FASTENING DEVICE SIZE: 5/16-18, 1-1/2IN. LG IN
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT2.313 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER1.000 INCHES NOMINAL IN
FASTENING DEVICE TYPEBOLTS
SHANK LENGTH1.500 INCHES NOMINAL IN
STYLE DESIGNATORFLAT RECESSED TOP THREADED STUD
THREAD SIZE5/16-18
FASTENING DEVICE SIZE5/16-18, 1-1/2IN. LG IN
MATERIALRUBBER
SUBSTITUTES & CROSS-REFERENCES 2
1042480Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
A7057Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 A53609?
A53609 is a BUMPER.
What parts can replace A53609?
There are 2 known substitutes for A53609: 1042480, A7057. Substitute compatibility should be verified for your specific system.
What is the NSN for A53609?
A53609 is cataloged in the U.S. Government catalog under NSN 5340-00-498-6611. 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.