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21672-102C — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

21672-102C: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, end_style: D SHAP BELOW INSIDE PERIPHERY, ring_style: STRAIGHT GAP, usage_design: INTERNAL, outside_diameter: 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN, surface_treatment: CADMIUM. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-243-2255, 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
21672-102C
NSN: 5325-00-243-2255
FSC: 5325 — Fastening Devices
CAGE: 59875 — EATON CORP DBA EATON AEROSPACE JACKSON (USA)
SPECIFICATIONS
materialSTEEL
end_styleD SHAP BELOW INSIDE PERIPHERY
ring_styleSTRAIGHT GAP
usage_designINTERNAL
outside_diameter1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN
surface_treatmentCADMIUM
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleROUND
material_document_and_classificationMIL-W-6101 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5325-00-243-2255
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 21672-102C · 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
•
USAGE DESIGN: INTERNAL
•
END STYLE: D SHAP BELOW INSIDE PERIPHERY
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-W-6101 MIL SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
OUTSIDE DIAMETER: 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: STRAIGHT GAP
•
SURFACE TREATMENT: CADMIUM
TECHNICAL CHARACTERISTICS
USAGE DESIGNINTERNAL
END STYLED SHAP BELOW INSIDE PERIPHERY
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-W-6101 MIL SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEROUND
OUTSIDE DIAMETER1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESTRAIGHT GAP
SURFACE TREATMENTCADMIUM
MATERIALSTEEL
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 21672-102C?
21672-102C is a RING,RETAINING.
What is the NSN for 21672-102C?
21672-102C is cataloged in the U.S. Government catalog under NSN 5325-00-243-2255. 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.