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3260AS1284 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3260AS1284: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-STYRENE CLASS SBR, hole_diameter: 0.156 INCHES NOMINAL IN, overall_height: 0.438 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN, style_designator: DONUT TOP COUNTERBORED, first_counterbore_depth: 0.250 INCHES NOMINAL IN, material_hardness_rating: 60.0 DUROMETER MINIMUM AND 70.0 DUROMETER MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-485-9547, 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
3260AS1284
NSN: 5340-01-485-9547
FSC: 5340 — Hardware, Commercial
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-STYRENE CLASS SBR
hole_diameter0.156 INCHES NOMINAL IN
overall_height0.438 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
style_designatorDONUT TOP COUNTERBORED
first_counterbore_depth0.250 INCHES NOMINAL IN
material_hardness_rating60.0 DUROMETER MINIMUM AND 70.0 DUROMETER MAXIMUM
first_counterbore_diameter0.312 INCHES NOMINAL IN
outside/top_flange_diameter0.563 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
NSN5340-01-485-9547
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3260AS1284 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: 0.563 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
•
MATERIAL HARDNESS RATING: 60.0 DUROMETER MINIMUM AND 70.0 DUROMETER MAXIMUM
•
FIRST COUNTERBORE DIAMETER: 0.312 INCHES NOMINAL IN
•
STYLE DESIGNATOR: DONUT TOP COUNTERBORED
•
FIRST COUNTERBORE DEPTH: 0.250 INCHES NOMINAL IN
•
COLOR: BLACK
•
MATERIAL: RUBBER BUTADIENE-STYRENE CLASS SBR
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.438 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
OUTSIDE/TOP FLANGE DIAMETER0.563 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
MATERIAL HARDNESS RATING60.0 DUROMETER MINIMUM AND 70.0 DUROMETER MAXIMUM
FIRST COUNTERBORE DIAMETER0.312 INCHES NOMINAL IN
STYLE DESIGNATORDONUT TOP COUNTERBORED
FIRST COUNTERBORE DEPTH0.250 INCHES NOMINAL IN
COLORBLACK
MATERIALRUBBER BUTADIENE-STYRENE CLASS SBR
HOLE DIAMETER0.156 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
1328BSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
513RSame 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 3260AS1284?
3260AS1284 is a BUMPER.
What parts can replace 3260AS1284?
There are 2 known substitutes for 3260AS1284: 1328B, 513R. Substitute compatibility should be verified for your specific system.
What is the NSN for 3260AS1284?
3260AS1284 is cataloged in the U.S. Government catalog under NSN 5340-01-485-9547. This indicates validated use in U.S. government and defense supply chains.
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