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Technical Data Sheet
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A00078 — HOUSING,FIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A00078: HOUSING,FIN.

The HOUSING,FIN is a the manufacturer industrial component. Key specifications include overall_length: 43.6 MILLIMETERS MINIMUM AND 44.4 MILLIMETERS MAXIMUM MM, special_features: DIAMETER IS 34 MM PLUS OR MINUS 0.3 MM WITH THREE FLANGES THAT ARE LOCATED 30 DEG; 150 DEG; AND 270 DEG ON THE PART MM, general_characteristics_item_description: 2.5 MM FIN HOUSING; 2 POS ASSY MM. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-538-1044, 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
A00078
NSN: 5340-01-538-1044
FSC: 5340 — Hardware, Commercial
CAGE: H2JS4 — V.S.E. VEHICLE SYSTEMS ENGINEERING B.V. (NLD)
SPECIFICATIONS
overall_length43.6 MILLIMETERS MINIMUM AND 44.4 MILLIMETERS MAXIMUM MM
special_featuresDIAMETER IS 34 MM PLUS OR MINUS 0.3 MM WITH THREE FLANGES THAT ARE LOCATED 30 DEG; 150 DEG; AND 270 DEG ON THE PART MM
general_characteristics_item_description2.5 MM FIN HOUSING; 2 POS ASSY MM
NSN5340-01-538-1044
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A00078 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 2.5 MM FIN HOUSING; 2 POS ASSY MM
•
COLOR: BLACK
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTION2.5 MM FIN HOUSING; 2 POS ASSY MM
OVERALL LENGTH43.6 MILLIMETERS MINIMUM AND 44.4 MILLIMETERS MAXIMUM MM
COLORBLACK
SPECIAL FEATURESDIAMETER IS 34 MM PLUS OR MINUS 0.3 MM WITH THREE FLANGES THAT ARE LOCATED 30 DEG; 150 DEG; AND 270 DEG ON THE PART MM
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 A00078?
A00078 is a HOUSING,FIN.
What is the NSN for A00078?
A00078 is cataloged in the U.S. Government catalog under NSN 5340-01-538-1044. 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.