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US71686 ITEM 1 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

US71686 ITEM 1: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, casehardening_indicator: NOT CASEHARDENED, end_item_identification: STERN TUBE SEAL ASSY. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-345-1583, 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
US71686 ITEM 1
NSN: 5325-01-345-1583
FSC: 5325 — Fastening Devices
CAGE: 0SYN4 — WARTSILA LIPS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY
casehardening_indicatorNOT CASEHARDENED
end_item_identificationSTERN TUBE SEAL ASSY
NSN5325-01-345-1583
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: US71686 ITEM 1 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
CASEHARDENING INDICATORNOT CASEHARDENED
END ITEM IDENTIFICATIONSTERN TUBE SEAL ASSY
MATERIALCOPPER ALLOY
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 US71686 ITEM 1?
US71686 ITEM 1 is a RING,RETAINING.
What is the NSN for US71686 ITEM 1?
US71686 ITEM 1 is cataloged in the U.S. Government catalog under NSN 5325-01-345-1583. 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.