The Ring,retaining, cataloged under National Stock Number 5325-01-590-4580, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Smalley Steel Ring Co.. Government technical data includes 3 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-590-4580 |
| Primary Part Number | EH-88S02 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Smalley Steel Ring Co. |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Material Document and Classification | 17-7PH, ARMCO STEEL CORP MFR REF 1ST MATERIAL RESPONSE AND AISI 302 ASSN STD 2ND MATERIAL RESPONSE |
| Material | STEEL COMP 631 OR STEEL COMP 302 |
| 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 |
|---|---|
| EH-88S02 PRIMARY | Smalley Steel Ring Co. (USA) |
NSN 5325-01-590-4580 is a Ring,retaining, manufactured by Smalley Steel Ring Co., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-590-4580 has 1 manufacturer part number on file: EH-88S02 (Smalley Steel Ring Co.).
Key specifications for EH-88S02: Usage Design: INTERNAL; Material Document and Classification: 17-7PH, ARMCO STEEL CORP MFR REF 1ST MATERIAL RESPONSE AND AISI 302 ASSN STD 2ND MATERIAL RESPONSE; Special Features: ADDITIONAL MATERIAL CHOICE 316 STAINLESS STEEL;ID 88.000 MM;RING SHEAR 124000.0;GROOVE YIELD 57860.0;RING DIA 91.450 MM;RADIAL WALL 4.780 MM;RING THICKNESS 1.550 MM;GROOVE DIA 90.690 MM;MIN GROOVE WIDTH 1.730 MM;2-TURN;CRIMP YES MM; Part Name Assigned by Controlling Agency: RETAINING RING. 3 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.