The Ring,retaining, cataloged under National Stock Number 5325-01-107-2160, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Smiths Aerospace, Inc., Electronic Systems-Grand Rapids. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-107-2160 |
| Primary Part Number | 21886 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Smiths Aerospace, Inc., Electronic Systems-Grand Rapids |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 0.187 INCHES NOMINAL IN |
| Major Thickness | 0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN |
| Inside Diameter | 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | E |
| Surface Treatment | PASSIVATE |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 21886 PRIMARY | Smiths Aerospace, Inc., Electronic Systems-Grand Rapids (USA) |
NSN 5325-01-107-2160 is a Ring,retaining, manufactured by Smiths Aerospace, Inc., Electronic Systems-Grand Rapids, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-107-2160 has 1 manufacturer part number on file: 21886 (Smiths Aerospace, Inc., Electronic Systems-Grand Rapids).
3 possible matches (shared part number, not a government interchangeability claim): 5945-01-477-7156, 5310-01-653-2953, 5945-01-730-8727. Verify interchangeability with system specifications before substitution.
Key specifications for 21886: Usage Design: EXTERNAL; Cross-Sectional Shape Style: RECTANGULAR; Outside Diameter: 0.187 INCHES NOMINAL IN; Major Thickness: 0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN. 9 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.