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6510-21-159-1106 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6510-21-159-1106: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER, hole_depth: 0.1900 INCHES MINIMUM AND 0.2140 INCHES MAXIMUM IN, overall_height: 0.3550 INCHES MINIMUM AND 0.3950 INCHES MAXIMUM IN, style_designator: FLAT TOP COUNTERSUNK, countersink_depth: 0.1400 INCHES NOMINAL IN, outside/top_flange_diameter: 2.2400 INCHES MINIMUM AND 2.2800 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-463-7148, 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
6510-21-159-1106
NSN: 5340-01-463-7148
FSC: 5340 — Hardware, Commercial
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialRUBBER
hole_depth0.1900 INCHES MINIMUM AND 0.2140 INCHES MAXIMUM IN
overall_height0.3550 INCHES MINIMUM AND 0.3950 INCHES MAXIMUM IN
style_designatorFLAT TOP COUNTERSUNK
countersink_depth0.1400 INCHES NOMINAL IN
outside/top_flange_diameter2.2400 INCHES MINIMUM AND 2.2800 INCHES MAXIMUM IN
material_document_and_classificationMIL-R-6855, CLASS 2, GRADE 60 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-463-7148
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6510-21-159-1106 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: 2.2400 INCHES MINIMUM AND 2.2800 INCHES MAXIMUM IN
•
HOLE DEPTH: 0.1900 INCHES MINIMUM AND 0.2140 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: FLAT TOP COUNTERSUNK
•
COUNTERSINK DEPTH: 0.1400 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-6855, CLASS 2, GRADE 60 MIL SPEC SINGLE MATERIAL RESPONSE
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.3550 INCHES MINIMUM AND 0.3950 INCHES MAXIMUM IN
OUTSIDE/TOP FLANGE DIAMETER2.2400 INCHES MINIMUM AND 2.2800 INCHES MAXIMUM IN
HOLE DEPTH0.1900 INCHES MINIMUM AND 0.2140 INCHES MAXIMUM IN
STYLE DESIGNATORFLAT TOP COUNTERSUNK
COUNTERSINK DEPTH0.1400 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6855, CLASS 2, GRADE 60 MIL SPEC SINGLE MATERIAL RESPONSE
MATERIALRUBBER
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 6510-21-159-1106?
6510-21-159-1106 is a BUMPER.
What is the NSN for 6510-21-159-1106?
6510-21-159-1106 is cataloged in the U.S. Government catalog under NSN 5340-01-463-7148. 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.