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FE581 — BUCKLE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

FE581: BUCKLE.

The BUCKLE is a the manufacturer industrial component. Key specifications include insignia: NOT INCLUDED, overall_width: 0.8000 INCHES NOMINAL IN, overall_length: 0.8750 INCHES NOMINAL IN, enameled_feature: NOT INCLUDED, special_features: THE ITEM IS MADE PER ASTM-B443 UNS NO 6625 NICKEL-CHROMIUN MOLYBDENUM ALY, strap_accommodation_width: 0.6750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-418-3715, 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
FE581
NSN: 5340-01-418-3715
FSC: 5340 — Hardware, Commercial
CAGE: 70847 — BAND-IT-IDEX INC UNIT OF IDEX CORP (USA)
SPECIFICATIONS
insigniaNOT INCLUDED
overall_width0.8000 INCHES NOMINAL IN
overall_length0.8750 INCHES NOMINAL IN
enameled_featureNOT INCLUDED
special_featuresTHE ITEM IS MADE PER ASTM-B443 UNS NO 6625 NICKEL-CHROMIUN MOLYBDENUM ALY
strap_accommodation_width0.6750 INCHES NOMINAL IN
NSN5340-01-418-3715
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: FE581 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
•
STRAP ACCOMMODATION WIDTH: 0.6750 INCHES NOMINAL IN
•
INSIGNIA: NOT INCLUDED
•
ENAMELED FEATURE: NOT INCLUDED
TECHNICAL CHARACTERISTICS
STRAP ACCOMMODATION WIDTH0.6750 INCHES NOMINAL IN
OVERALL LENGTH0.8750 INCHES NOMINAL IN
OVERALL WIDTH0.8000 INCHES NOMINAL IN
INSIGNIANOT INCLUDED
SPECIAL FEATURESTHE ITEM IS MADE PER ASTM-B443 UNS NO 6625 NICKEL-CHROMIUN MOLYBDENUM ALY
ENAMELED FEATURENOT INCLUDED
SUBSTITUTES & CROSS-REFERENCES 4
C34599Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
497A63804Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
203-INReference document
Same NSN cross-reference
Reference document — Secondary reference
497A63804-1Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 FE581?
FE581 is a BUCKLE.
What parts can replace FE581?
There are 4 known substitutes for FE581: C34599, 497A63804, 203-IN and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FE581?
FE581 is cataloged in the U.S. Government catalog under NSN 5340-01-418-3715. This indicates validated use in U.S. government and defense supply chains.
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