PartsTable
Technical Data Sheet
Download PDF

81254 — EXHAUST DUCT,OIL COOLER

✓ Government record, cited
Hama · ORING SEAL
PRODUCT OVERVIEW

81254: EXHAUST DUCT,OIL COOLER.

- For Olympus Li-42B/40B, Nikon EN-EL10, Fuji NP-45, Pentax D-Li63 battery - Suitable for the universal charger item no. 81200. Key specifications include general_characteristics_item_description: INCLUDES 3 CLAMPS,1 BOLT,1 WASHER AND 1 NUT,TO PREVENT DUCT CLAMP FROM SLIPPING FROM ITS SUPPORT.

This part is cataloged in the U.S. Government catalog under NSN 5340-01-201-9748, 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
81254
NSN: 5340-01-201-9748
NIINs: 012019748, 012735796, 015877902
FSC: 5340 — Hardware, Commercial
CAGE: 0EXU3 — AQUA-CHEM, INC. DBA AQUA-CHEM INC (USA)
SPECIFICATIONS
general_characteristics_item_descriptionINCLUDES 3 CLAMPS,1 BOLT,1 WASHER AND 1 NUT,TO PREVENT DUCT CLAMP FROM SLIPPING FROM ITS SUPPORT
NSN5340-01-201-9748
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 81254 MFR: Hama ⚠ 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
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 81254?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 81254?
81254 is a EXHAUST DUCT,OIL COOLER manufactured by Hama.
What is the NSN for 81254?
81254 is cataloged in the U.S. Government catalog under NSN 5340-01-201-9748. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 81254

✓ 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.