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MBEU10371 — BUMPER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MBEU10371: BUMPER.

The BUMPER is a the manufacturer industrial component. Key specifications include material: RUBBER, hole_depth: 0.562 INCHES NOMINAL IN, hole_diameter: 0.437 INCHES NOMINAL IN, overall_height: 0.750 INCHES NOMINAL IN, special_features: OUTSIDE LEFT CORNER ROUNDED 0.125IN. RADIUS,OUTSIDE RIGHT CORNER ROUNDED 0.062 IN.

RADIUS IN, style_designator: FLAT RECESSED TOP. This part is cataloged in the U.S. Government catalog under NSN 5340-00-790-8056, 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
MBEU10371
NSN: 5340-00-790-8056
FSC: 5340 — Hardware, Commercial
CAGE: U1604 — MARTIN-BAKER AIRCRAFT COMPANY LIMITED (GBR)
SPECIFICATIONS
materialRUBBER
hole_depth0.562 INCHES NOMINAL IN
hole_diameter0.437 INCHES NOMINAL IN
overall_height0.750 INCHES NOMINAL IN
special_featuresOUTSIDE LEFT CORNER ROUNDED 0.125IN. RADIUS,OUTSIDE RIGHT CORNER ROUNDED 0.062 IN. RADIUS IN
style_designatorFLAT RECESSED TOP
material_hardness_rating80.0 SHORE DUROMETER A NOMINAL
outside/top_flange_diameter0.657 INCHES NOMINAL IN
material_document_and_classificationMARTIN BAKER ACFT, BS1154 MFR REF SINGLE MATERIAL RESPONSE
NSN5340-00-790-8056
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MBEU10371 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: 0.657 INCHES NOMINAL IN
•
MATERIAL HARDNESS RATING: 80.0 SHORE DUROMETER A NOMINAL
•
HOLE DEPTH: 0.562 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLAT RECESSED TOP
•
MATERIAL DOCUMENT AND CLASSIFICATION: MARTIN BAKER ACFT, BS1154 MFR REF SINGLE MATERIAL RESPONSE
•
COLOR: BLACK
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.750 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER0.657 INCHES NOMINAL IN
MATERIAL HARDNESS RATING80.0 SHORE DUROMETER A NOMINAL
HOLE DEPTH0.562 INCHES NOMINAL IN
STYLE DESIGNATORFLAT RECESSED TOP
MATERIAL DOCUMENT AND CLASSIFICATIONMARTIN BAKER ACFT, BS1154 MFR REF SINGLE MATERIAL RESPONSE
COLORBLACK
SPECIAL FEATURESOUTSIDE LEFT CORNER ROUNDED 0.125IN. RADIUS,OUTSIDE RIGHT CORNER ROUNDED 0.062 IN. RADIUS IN
MATERIALRUBBER
HOLE DIAMETER0.437 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 MBEU10371?
MBEU10371 is a BUMPER.
What is the NSN for MBEU10371?
MBEU10371 is cataloged in the U.S. Government catalog under NSN 5340-00-790-8056. 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.