The Ring,retaining, cataloged under National Stock Number 5325-01-307-1885, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-307-1885 |
| Primary Part Number | 178AS325 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Material Hardness Rating | 84.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 86.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM |
| Usage Design | EXTERNAL |
| End Style | 90 DEGREE PARALLEL |
| Material Document and Classification | MIL-S-7947, COMP 1095, COND 2 MIL SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Outside Diameter | 1.204 INCHES NOMINAL IN |
| Major Thickness | 0.187 INCHES NOMINAL IN |
| Inside Diameter | 1.140 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Surface Treatment | CADMIUM AND CHROMATE |
| Material | STEEL COMP 1095 |
| 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 |
|---|---|
| 178AS325 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 178AS325 | 5/9 Secondary reference Naval Air Warfare Center Aircraft Div |
NSN 5325-01-307-1885 is a Ring,retaining, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-307-1885 has 1 manufacturer part number on file: 178AS325 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 178AS325: Material Hardness Rating: 84.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 86.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM; Usage Design: EXTERNAL; End Style: 90 DEGREE PARALLEL; Material Document and Classification: MIL-S-7947, COMP 1095, COND 2 MIL SPEC SINGLE MATERIAL RESPONSE. 12 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.