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H71686-1-4 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

H71686-1-4: 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 5325-01-345-1585, 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
H71686-1-4
NSN: 5325-01-345-1585
FSC: 5325 — Fastening Devices
CAGE: 71724 — JOHN CRANE, INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY
casehardening_indicatorNOT CASEHARDENED
end_item_identificationSTERN TUBE SEAL ASSY
NSN5325-01-345-1585
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: H71686-1-4 · 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
SUBSTITUTES & CROSS-REFERENCES 1
US71686 ITEM 1-4Reference 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 H71686-1-4?
H71686-1-4 is a RING,RETAINING.
What parts can replace H71686-1-4?
There is 1 known substitute for H71686-1-4: US71686 ITEM 1-4. Substitute compatibility should be verified for your specific system.
What is the NSN for H71686-1-4?
H71686-1-4 is cataloged in the U.S. Government catalog under NSN 5325-01-345-1585. 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.