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516RW — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

516RW: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, hole_diameter: 0.172 INCHES NOMINAL IN, overall_height: 0.781 INCHES NOMINAL IN, style_designator: FLAT TOP COUNTERBORED, first_counterbore_depth: 0.250 INCHES NOMINAL IN, material_hardness_rating: 65.0 DUROMETER MINIMUM AND 75.0 DUROMETER MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-879-4810, 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
516RW
NSN: 5340-00-879-4810
FSC: 5340 — Hardware, Commercial
CAGE: 75543 — LAVELLE INDUSTRIES INC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
hole_diameter0.172 INCHES NOMINAL IN
overall_height0.781 INCHES NOMINAL IN
style_designatorFLAT TOP COUNTERBORED
first_counterbore_depth0.250 INCHES NOMINAL IN
material_hardness_rating65.0 DUROMETER MINIMUM AND 75.0 DUROMETER MAXIMUM
first_counterbore_diameter0.344 INCHES NOMINAL IN
outside/top_flange_diameter0.750 INCHES NOMINAL IN
NSN5340-00-879-4810
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 516RW 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: 0.750 INCHES NOMINAL IN
•
MATERIAL HARDNESS RATING: 65.0 DUROMETER MINIMUM AND 75.0 DUROMETER MAXIMUM
•
FIRST COUNTERBORE DIAMETER: 0.344 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT TOP COUNTERBORED
•
FIRST COUNTERBORE DEPTH: 0.250 INCHES NOMINAL IN
•
COLOR: BLACK
•
MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.781 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER0.750 INCHES NOMINAL IN
MATERIAL HARDNESS RATING65.0 DUROMETER MINIMUM AND 75.0 DUROMETER MAXIMUM
FIRST COUNTERBORE DIAMETER0.344 INCHES NOMINAL IN
STYLE DESIGNATORFLAT TOP COUNTERBORED
FIRST COUNTERBORE DEPTH0.250 INCHES NOMINAL IN
COLORBLACK
MATERIALRUBBER SYNTHETIC
HOLE DIAMETER0.172 INCHES NOMINAL IN
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 516RW?
516RW is a BUMPER.
What is the NSN for 516RW?
516RW is cataloged in the U.S. Government catalog under NSN 5340-00-879-4810. 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.