PartsTable
Technical Data Sheet
SM-D-551398-1 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The SNAP HOOK is a the manufacturer industrial component. Key specifications include unattached_ring: NOT INCLUDED, hook_style_designator: SPRING BLADE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-275-7171, 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
SM-D-551398-1
NSN: 5340-01-275-7171
FSC: 5340
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
unattached_ringNOT INCLUDED
hook_style_designatorSPRING BLADE
NSN5340-01-275-7171
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SM-D-551398-1 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
HOOK STYLE DESIGNATOR: SPRING BLADE
UNATTACHED RING: NOT INCLUDED
TECHNICAL CHARACTERISTICS (FLIS)
HOOK STYLE DESIGNATORSPRING BLADE
UNATTACHED RINGNOT INCLUDED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
GGS931Upgraded Successor
successor cross-reference
successor
PS4Upgraded Successor
successor cross-reference
successor
5306Upgraded Successor
successor cross-reference
successor
4.50-6Interchangeable
interchangeable cross-reference
interchangeable
5.30/4.50-6Interchangeable
interchangeable cross-reference
interchangeable
GP5/5.30/4.50-6/TR87/OFF CENTERInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SM-D-551398-1?
SM-D-551398-1 is a SNAP HOOK.
What parts can replace SM-D-551398-1?
There are 20 known substitutes for SM-D-551398-1: GGS931, PS4, 5306 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SM-D-551398-1?
SM-D-551398-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-275-7171. This indicates validated use in U.S. government and defense supply chains.
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