The Ring,retaining, cataloged under National Stock Number 5325-01-055-4333, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Tridair Products. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Ring,retaining |
| FSC / FSG | 5325 — Fastening Devices (FSG 53) |
| Manufacturers | Szczypski, Michael (CAGE 0NEM2); Fairchild Fasteners Europe - Camloc Gmbh (CAGE D0680); Howmet Global Fastening Systems Inc. Div Tridair Products (CAGE 29372); The Boeing Company Div Legacy Am&m (CAGE 43999) |
| Parameter | Value |
|---|---|
| NSN | 5325-01-055-4333 |
| Primary Part Number | CA21037CL-6R |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| 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 |
|---|---|
| C9538-6-JP4333 | Szczypski, Michael (USA) |
| CA21037-6R | Fairchild Fasteners Europe - Camloc Gmbh (DEU) |
| CA21037CL-6R PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| TE123-0001 | The Boeing Company Div Legacy Am&m (USA) |
| Reference | Meaning |
|---|---|
| 5325PL0789103 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 5325PL1761037 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 135933-0001 | 7/2 Vendor item drawing reference Bae Systems Information & Electronic Systems Integration Inc. |
| 5325PL2119277 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| TE123-0001-0001 | 5/9 Secondary reference The Boeing Company Dba Boeing |
| C9538-6 | 7/2 Vendor item drawing reference U.S. Government activity |
| CA21037-6R | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Tridair Products |
NSN 5325-01-055-4333 is a Ring,retaining, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-055-4333 has 4 manufacturer part numbers on file: C9538-6-JP4333 (Szczypski, Michael), CA21037-6R (Fairchild Fasteners Europe - Camloc Gmbh), CA21037CL-6R (Howmet Global Fastening Systems Inc. Div Tridair Products), TE123-0001 (The Boeing Company Div Legacy Am&m).
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.