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JG0042L — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

JG0042L: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, overall_height: 0.312 INCHES NOMINAL IN, groove_diameter: 0.500 INCHES NOMINAL IN, special_features: 0.031 IN. RADIUS ON TOP FLANGE,0.046 IN.

CORNER RADIUS ON BOTTOM FLANGE IN, style_designator: DOUBLE FLANGE, top_flange_width: 0.156 INCHES NOMINAL IN. This part is cataloged in the U.S. Government catalog under NSN 5340-00-266-0751, 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
JG0042L
NSN: 5340-00-266-0751
FSC: 5340 — Hardware, Commercial
CAGE: 36004 — LEWYT CORP
SPECIFICATIONS
materialRUBBER SYNTHETIC
overall_height0.312 INCHES NOMINAL IN
groove_diameter0.500 INCHES NOMINAL IN
special_features0.031 IN. RADIUS ON TOP FLANGE,0.046 IN. CORNER RADIUS ON BOTTOM FLANGE IN
style_designatorDOUBLE FLANGE
top_flange_width0.156 INCHES NOMINAL IN
bottom_flange_width0.093 INCHES NOMINAL IN
bottom_flange_diameter0.750 INCHES NOMINAL IN
material_hardness_rating50.0 DUROMETER MINIMUM AND 55.0 DUROMETER MAXIMUM
outside/top_flange_diameter1.000 INCHES NOMINAL IN
NSN5340-00-266-0751
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: JG0042L 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
•
BOTTOM FLANGE DIAMETER: 0.750 INCHES NOMINAL IN
•
OUTSIDE/TOP FLANGE DIAMETER: 1.000 INCHES NOMINAL IN
•
MATERIAL HARDNESS RATING: 50.0 DUROMETER MINIMUM AND 55.0 DUROMETER MAXIMUM
•
GROOVE DIAMETER: 0.500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: DOUBLE FLANGE
•
BOTTOM FLANGE WIDTH: 0.093 INCHES NOMINAL IN
•
COLOR: BLACK
TECHNICAL CHARACTERISTICS
BOTTOM FLANGE DIAMETER0.750 INCHES NOMINAL IN
OVERALL HEIGHT0.312 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER1.000 INCHES NOMINAL IN
MATERIAL HARDNESS RATING50.0 DUROMETER MINIMUM AND 55.0 DUROMETER MAXIMUM
GROOVE DIAMETER0.500 INCHES NOMINAL IN
STYLE DESIGNATORDOUBLE FLANGE
BOTTOM FLANGE WIDTH0.093 INCHES NOMINAL IN
COLORBLACK
SPECIAL FEATURES0.031 IN. RADIUS ON TOP FLANGE,0.046 IN. CORNER RADIUS ON BOTTOM FLANGE IN
TOP FLANGE WIDTH0.156 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is JG0042L?
JG0042L is a BUMPER.
What is the NSN for JG0042L?
JG0042L is cataloged in the U.S. Government catalog under NSN 5340-00-266-0751. 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.