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349-1617 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

349-1617: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include special_features: NHA IS CYLINDER ASSEMBLY, P/N 4KK627, end_item_identification: HIMARS, MK37, 2320-01504-5218, part_name_assigned_by_controlling_agency: LOCKING RING. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-531-7150, 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
349-1617
NSN: 5325-01-531-7150
FSC: 5325 — Fastening Devices
CAGE: 34914 — HIAB USA INC (USA)
SPECIFICATIONS
special_featuresNHA IS CYLINDER ASSEMBLY, P/N 4KK627
end_item_identificationHIMARS, MK37, 2320-01504-5218
part_name_assigned_by_controlling_agencyLOCKING RING
NSN5325-01-531-7150
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 349-1617 · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESNHA IS CYLINDER ASSEMBLY, P/N 4KK627
PART NAME ASSIGNED BY CONTROLLING AGENCYLOCKING RING
END ITEM IDENTIFICATIONHIMARS, MK37, 2320-01504-5218
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 1
6KK729Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 349-1617?
349-1617 is a RING,RETAINING.
What parts can replace 349-1617?
There is 1 known substitute for 349-1617: 6KK729. Substitute compatibility should be verified for your specific system.
What is the NSN for 349-1617?
349-1617 is cataloged in the U.S. Government catalog under NSN 5325-01-531-7150. 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.