The Ring,retaining, cataloged under National Stock Number 5325-01-218-7325, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, 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 | 5325-01-218-7325 |
| Primary Part Number | RR-150-S |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — No Item Name Available |
| Manufacturer | Spirolox Inc |
| Status | ACTIVE |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Inside Diameter | 1.377 INCHES MINIMUM AND 1.438 INCHES MAXIMUM IN |
| Strength Rating | ERR-060 |
| Material Document and Classification | MIL-S-5059, TYPE 302 MIL SPEC 1ST MATERIAL RESPONSE AND AMS 5519 ASSN STD 2ND MATERIAL RESPONSE AND QQ-S-766, CLASS 302 FED SPEC 3RD MATERIAL RESPONSE |
| Material | STEEL COMP 302 OR STEEL COMP 301 |
| Ring Style | SPIRAL |
| Casehardening Indicator | NOT CASEHARDENED |
| Outside Diameter | 1.567 INCHES MINIMUM AND 1.628 INCHES MAXIMUM IN |
| Usage Design | INTERNAL |
| Major Thickness | 0.041 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20353 ITEM 27 | Cbs Broadcasting Inc. Dba Cbs Div Bechtel Plant Machinery Inc. - Pittsburgh (USA) |
| P00205NRP | Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA) |
| RR-150-S PRIMARY | Spirolox Inc (USA) |
| 20353 ITEM 27 | Biach Industries, Inc. (USA) |
NSN 5325-01-218-7325 is a Ring,retaining, manufactured by Spirolox Inc, classified under FSC 5325 (No Item Name Available). Status: active.
NSN 5325-01-218-7325 has 4 cross-referenced part numbers: 20353 ITEM 27 (Cbs Broadcasting Inc. Dba Cbs Div Bechtel Plant Machinery Inc. - Pittsburgh), P00205NRP (Defense Logistics Agency Dba Defense Supply Center Philadelphia), RR-150-S (Spirolox Inc), 20353 ITEM 27 (Biach Industries, Inc.).
There is 1 known substitute for 5325-01-218-7325: 5325-00-205-6566. Verify interchangeability with system specifications before substitution.
Key specifications for RR-150-S: Cross-Sectional Shape Style: DOUBLE OVAL; Inside Diameter: 1.377 INCHES MINIMUM AND 1.438 INCHES MAXIMUM IN; Strength Rating: ERR-060; Material Document and Classification: MIL-S-5059, TYPE 302 MIL SPEC 1ST MATERIAL RESPONSE AND AMS 5519 ASSN STD 2ND MATERIAL RESPONSE AND QQ-S-766, CLASS 302 FED SPEC 3RD MATERIAL RESPONSE. 10 total characteristics are documented in the Federal Logistics Information System.