The Ring,retaining, cataloged under National Stock Number 5325-01-485-8881, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Spirolox Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-485-8881 |
| Primary Part Number | RST-425 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — No Item Name Available |
| Manufacturer | Spirolox Inc |
| Status | ACTIVE |
| Casehardening Indicator | NOT CASEHARDENED |
| Material | STEEL COMP 1070 |
| Material Document and Classification | AISI 1070 ASSN STD SINGLE MATERIAL RESPONSE |
| Strength Rating | ERR-060 |
| Ring Style | SPIRAL |
| Outside Diameter | 4.078 INCHES NOMINAL IN |
| Inside Diameter | 3.997 INCHES MINIMUM AND 4.037 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| RST-425 PRIMARY | Spirolox Inc (USA) |
NSN 5325-01-485-8881 is a Ring,retaining, manufactured by Spirolox Inc, classified under FSC 5325 (No Item Name Available). Status: active.
NSN 5325-01-485-8881 has 1 cross-referenced part number: RST-425 (Spirolox Inc).
There is 1 known substitute for 5325-01-485-8881: 5325-00-205-5118. Verify interchangeability with system specifications before substitution.
Key specifications for RST-425: Casehardening Indicator: NOT CASEHARDENED; Material: STEEL COMP 1070; Material Document and Classification: AISI 1070 ASSN STD SINGLE MATERIAL RESPONSE; Strength Rating: ERR-060. 7 total characteristics are documented in the Federal Logistics Information System.