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67A81A21 — PLUG,FUSIBLE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

67A81A21: PLUG,FUSIBLE.

The PLUG,FUSIBLE is a the manufacturer industrial component. Key specifications include core_diameter: 0.250 INCHES NOMINAL IN, usage_location: INSIDE, size_designation: 1/4 INCH IN, features_provided: CORE, core_fusing_temp_rating: 281.0 DEG FAHRENHEIT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-116-1385, 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
67A81A21
NSN: 5340-00-116-1385
FSC: 5340 — Hardware, Commercial
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
core_diameter0.250 INCHES NOMINAL IN
usage_locationINSIDE
size_designation1/4 INCH IN
features_providedCORE
core_fusing_temp_rating281.0 DEG FAHRENHEIT
NSN5340-00-116-1385
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 67A81A21 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
•
CORE DIAMETER: 0.250 INCHES NOMINAL IN
•
FEATURES PROVIDED: CORE
•
SIZE DESIGNATION: 1/4 INCH IN
•
CORE FUSING TEMP RATING: 281.0 DEG FAHRENHEIT
•
USAGE LOCATION: INSIDE
TECHNICAL CHARACTERISTICS
CORE DIAMETER0.250 INCHES NOMINAL IN
FEATURES PROVIDEDCORE
SIZE DESIGNATION1/4 INCH IN
CORE FUSING TEMP RATING281.0 DEG FAHRENHEIT
USAGE LOCATIONINSIDE
SUBSTITUTES & CROSS-REFERENCES 1
D20642Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 67A81A21?
67A81A21 is a PLUG,FUSIBLE.
What parts can replace 67A81A21?
There is 1 known substitute for 67A81A21: D20642. Substitute compatibility should be verified for your specific system.
What is the NSN for 67A81A21?
67A81A21 is cataloged in the U.S. Government catalog under NSN 5340-00-116-1385. This indicates validated use in U.S. government and defense supply chains.
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