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40688 — SEAL FUEL

✓ Government record, cited
Hama · ORING SEAL
PRODUCT OVERVIEW

40688: SEAL FUEL.

The SEAL FUEL is a Hama industrial component. Key specifications include special_features: ASN - S120-3ASSCAI55, end_item_identification: ASOS COMPONENT, part_name_assigned_by_controlling_agency: SCA PLACARD. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-780-2159, 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
40688
NSN: 5330-00-780-2159
NIINs: 007802159, 017242059
FSC: 5330 — Packing and Gasket Materials
CAGE: 77842 — EATON CORPORATION DBA EATON INOAC DIV EATON (USA)
SPECIFICATIONS
special_featuresASN - S120-3ASSCAI55
end_item_identificationASOS COMPONENT
part_name_assigned_by_controlling_agencySCA PLACARD
NSN5330-00-780-2159
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 40688 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
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 0.460 IN. NOM ID,0.939 IN. NOM OD,0.492 IN. NOM W IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTION0.460 IN. NOM ID,0.939 IN. NOM OD,0.492 IN. NOM W IN
SUBSTITUTES & CROSS-REFERENCES 2
3-3B002C0-7Reference document
Same NSN cross-reference
Reference document — Secondary reference
B40688Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 40688?
40688 is a SEAL FUEL manufactured by Hama.
What parts can replace 40688?
There are 2 known substitutes for 40688: 3-3B002C0-7, B40688. Substitute compatibility should be verified for your specific system.
What is the NSN for 40688?
40688 is cataloged in the U.S. Government catalog under NSN 5330-00-780-2159. This indicates validated use in U.S. government and defense supply chains.
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