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2122402 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

2122402: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include inside_diameter: 3.312 INCHES NOMINAL IN, major_thickness: 0.180 INCHES NOMINAL IN, outside_diameter: 5.078 INCHES NOMINAL IN, special_features: MAT: STAINLESS STEEL, part_name_assigned_by_controlling_agency: RING, DISC. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-596-9620, 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
2122402
NSN: 5325-01-596-9620
FSC: 5325 — Fastening Devices
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
inside_diameter3.312 INCHES NOMINAL IN
major_thickness0.180 INCHES NOMINAL IN
outside_diameter5.078 INCHES NOMINAL IN
special_featuresMAT: STAINLESS STEEL
part_name_assigned_by_controlling_agencyRING, DISC
NSN5325-01-596-9620
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2122402 · 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
•
OUTSIDE DIAMETER: 5.078 INCHES NOMINAL IN
•
MAJOR THICKNESS: 0.180 INCHES NOMINAL IN
•
INSIDE DIAMETER: 3.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER5.078 INCHES NOMINAL IN
MAJOR THICKNESS0.180 INCHES NOMINAL IN
INSIDE DIAMETER3.312 INCHES NOMINAL IN
SPECIAL FEATURESMAT: STAINLESS STEEL
PART NAME ASSIGNED BY CONTROLLING AGENCYRING, DISC
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2122402?
2122402 is a RING,RETAINING.
What is the NSN for 2122402?
2122402 is cataloged in the U.S. Government catalog under NSN 5325-01-596-9620. 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.