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3943T1 — SNAP HOOK

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3943T1: SNAP HOOK.

The SNAP HOOK is a the manufacturer industrial component. Key specifications include material: ZINC ALLOY BLADE, design_type: SWIVEL, overall_length: 3.000 INCHES NOMINAL IN, unattached_ring: NOT INCLUDED, hook_style_designator: SPRING BLADE, rubber_covered_feature: NOT INCLUDED. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-413-4517, 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
3943T1
NSN: 5340-01-413-4517
FSC: 5340 — Hardware, Commercial
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialZINC ALLOY BLADE
design_typeSWIVEL
overall_length3.000 INCHES NOMINAL IN
unattached_ringNOT INCLUDED
hook_style_designatorSPRING BLADE
rubber_covered_featureNOT INCLUDED
NSN5340-01-413-4517
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3943T1 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
•
UNATTACHED RING: NOT INCLUDED
•
DESIGN TYPE: SWIVEL
•
HOOK STYLE DESIGNATOR: SPRING BLADE
•
MATERIAL: ZINC ALLOY BLADE
•
RUBBER COVERED FEATURE: NOT INCLUDED
TECHNICAL CHARACTERISTICS
UNATTACHED RINGNOT INCLUDED
DESIGN TYPESWIVEL
OVERALL LENGTH3.000 INCHES NOMINAL IN
HOOK STYLE DESIGNATORSPRING BLADE
MATERIALZINC ALLOY BLADE
MATERIALZINC ALLOY HOOK
RUBBER COVERED FEATURENOT INCLUDED
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 1
15241006 ITEM 3Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 3943T1?
3943T1 is a SNAP HOOK.
What parts can replace 3943T1?
There is 1 known substitute for 3943T1: 15241006 ITEM 3. Substitute compatibility should be verified for your specific system.
What is the NSN for 3943T1?
3943T1 is cataloged in the U.S. Government catalog under NSN 5340-01-413-4517. 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.