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12521378 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12521378: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include style_designator: RECTANGULAR, end_item_identification: 12549890, part_name_assigned_by_controlling_agency: O-RING. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-611-9996, 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
12521378
NSN: 5330-01-611-9996
NIINs: 016119996, 016295967
FSC: 5330 — Packing and Gasket Materials
CAGE: 26044 — SAF INDUSTRIES LLC DBA SAF INDUSTRIES LLC DIV GARKENYON (USA)
SPECIFICATIONS
special_featuresRECTANGULAR SHAPED GASKET USED BETWEEN HOUSING AND COVER OF POWER DISTRIBUTION UNIT, 12545013 (19207); MATERIAL AND DIMENSIONS NOT SHOWN ON DRAWING
style_designatorRECTANGULAR
end_item_identification12549890
part_name_assigned_by_controlling_agencyO-RING
NSN5330-01-611-9996
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12521378 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
•
STYLE DESIGNATOR: RECTANGULAR
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORRECTANGULAR
SPECIAL FEATURESRECTANGULAR SHAPED GASKET USED BETWEEN HOUSING AND COVER OF POWER DISTRIBUTION UNIT, 12545013 (19207); MATERIAL AND DIMENSIONS NOT SHOWN ON DRAWING
PART NAME ASSIGNED BY CONTROLLING AGENCYDRAWING: O-RING
END ITEM IDENTIFICATION8750015-AIM, NSN 23500010871095; NHA: 12545013, POWER DISTTIBUTION UNIT, ASSY
SUBSTITUTES & CROSS-REFERENCES 1
12545013 ITEM 17Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12521378?
12521378 is a GASKET.
What parts can replace 12521378?
There is 1 known substitute for 12521378: 12545013 ITEM 17. Substitute compatibility should be verified for your specific system.
What is the NSN for 12521378?
12521378 is cataloged in the U.S. Government catalog under NSN 5330-01-611-9996. 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.