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MBEU-68380 — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MBEU-68380: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. Key specifications include lip_thickness: 0.500 INCHES NOMINAL IN, overall_height: 2.750 INCHES NOMINAL IN, flange_diameter: 2.960 INCHES NOMINAL IN, flange_thickness: 0.500 INCHES NOMINAL IN, style_designator: PARALLEL, end_hole_diameter: 0.687 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-154-2983, 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
MBEU-68380
NSN: 5340-01-154-2983
FSC: 5340 — Hardware, Commercial
CAGE: U1604 — MARTIN-BAKER AIRCRAFT COMPANY LIMITED (GBR)
SPECIFICATIONS
lip_thickness0.500 INCHES NOMINAL IN
overall_height2.750 INCHES NOMINAL IN
flange_diameter2.960 INCHES NOMINAL IN
flange_thickness0.500 INCHES NOMINAL IN
style_designatorPARALLEL
end_hole_diameter0.687 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN
body_inside_diameter1.375 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN
bolt_circle_diameter2.562 INCHES NOMINAL IN
fsc_application_dataPARACHUTE PACKING PRESS
body_outside_diameter1.970 INCHES NOMINAL IN
mounting_hole_diameter0.190 INCHES NOMINAL IN
NSN5340-01-154-2983
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MBEU-68380 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
•
FLANGE DIAMETER: 2.960 INCHES NOMINAL IN
•
FSC APPLICATION DATA: PARACHUTE PACKING PRESS
•
FLANGE THICKNESS: 0.500 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 1.970 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PARALLEL
•
MOUNTING HOLE DIAMETER: 0.190 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 1.375 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER2.960 INCHES NOMINAL IN
OVERALL HEIGHT2.750 INCHES NOMINAL IN
FSC APPLICATION DATAPARACHUTE PACKING PRESS
FLANGE THICKNESS0.500 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.970 INCHES NOMINAL IN
STYLE DESIGNATORPARALLEL
MOUNTING HOLE DIAMETER0.190 INCHES NOMINAL IN
BODY INSIDE DIAMETER1.375 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN
LIP THICKNESS0.500 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER2.562 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 MBEU-68380?
MBEU-68380 is a RETAINER,HELICAL COMPRESSION SPR.
What is the NSN for MBEU-68380?
MBEU-68380 is cataloged in the U.S. Government catalog under NSN 5340-01-154-2983. 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.