The Ring,retaining, cataloged under National Stock Number 5325-01-005-8568, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-005-8568 |
| Primary Part Number | 1555594 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Material Document and Classification | MIL-P-15035,TYPE FBM MIL SPEC 4TH MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Major Thickness | 0.050 INCHES NOMINAL IN |
| Inside Diameter | 3.635 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | EXTERNALLY NOTCHED |
| Material | PLASTIC PHENOL FORMALDEHYDE (PMO) AND COTTON OR PLASTIC PHENOLIC AND COTTON |
| 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 |
|---|---|
| 1555594 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 588.50-100000-001 | Diehl Defence Gmbh & Co. Kg (DEU) |
| 1555594 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5325-01-005-8568 is a Ring,retaining, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-005-8568 has 3 manufacturer part numbers on file: 1555594 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 588.50-100000-001 (Diehl Defence Gmbh & Co. Kg), 1555594 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 1555594: Usage Design: INTERNAL; Material Document and Classification: MIL-P-15035,TYPE FBM MIL SPEC 4TH MATERIAL RESPONSE; Cross-Sectional Shape Style: RECTANGULAR; Major Thickness: 0.050 INCHES NOMINAL IN. 8 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.