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RL221-2 — RING,RETAINING

✓ Government record, cited
ACT · BOLT SCREW
PRODUCT OVERVIEW

RL221-2: RING,RETAINING.

ACT pre-terminated cables are ready-to-use fiber optic installation cables with attached connectors. Pre-terminated fiber optic cables are used to connect different rooms, floors or buildings. The advantage of using pre-terminated cables is that no investment is needed in tools or test equipment, since the connectors are pre-set and each pre-terminated cable is individually tested after production and provided with a test report.

With ACT pre-terminated cables you can easily install a fiber optic cable without the use of tools. Ideal for the system integrator, installer or network administrator who wants to build a high quality and reliable network. ACT pre-terminated cables can be used both indoors and outdoors and are suitable for horizontal and vertical use.

This means that ACT pre-terminated cables are suitable for several This part is cataloged in the U.S. Government catalog under NSN 5325-01-575-2452, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
RL221-2
NSN: 5325-01-575-2452
FSC: 5325 — Fastening Devices
CAGE: 0L1E5 — LOCKHEED MARTIN CORPORATION (USA)
SPECIFICATIONS
end_item_identificationU-2
NSN5325-01-575-2452
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: RL221-2 · ACT ⚠ 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
END ITEM IDENTIFICATIONU-2
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
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is RL221-2?
RL221-2 is a RING,RETAINING manufactured by ACT.
What is the NSN for RL221-2?
RL221-2 is cataloged in the U.S. Government catalog under NSN 5325-01-575-2452. 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.