The Ring,retaining, cataloged under National Stock Number 5325-01-331-9911, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Rockwell Collins, Inc. Dba Rc Displays Systems. Government technical data includes 9 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 | 5325-01-331-9911 |
| Primary Part Number | 131311-2 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Rockwell Collins, Inc. Dba Rc Displays Systems |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Material Diameter | 0.020 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-766, CLASS 302 FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-766, CLASS 304, COND A FED SPEC 2ND MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.040 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | DOUBLE LEG OFFSET |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 302 OR STEEL COMP 304 |
| 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 |
|---|---|
| 131311-2 PRIMARY | Rockwell Collins, Inc. Dba Rc Displays Systems (USA) |
NSN 5325-01-331-9911 is a Ring,retaining, manufactured by Rockwell Collins, Inc. Dba Rc Displays Systems, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-331-9911 has 1 manufacturer part number on file: 131311-2 (Rockwell Collins, Inc. Dba Rc Displays Systems).
Key specifications for 131311-2: Usage Design: EXTERNAL; Material Diameter: 0.020 INCHES NOMINAL IN; Material Document and Classification: QQ-S-766, CLASS 302 FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-766, CLASS 304, COND A FED SPEC 2ND MATERIAL RESPONSE; Cross-Sectional Shape Style: ROUND. 9 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.