The Ring,retaining, cataloged under National Stock Number 5325-00-688-0274, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-688-0274 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Material Hardness Rating | 44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM |
| Usage Design | EXTERNAL |
| Material Document and Classification | AMS 5520 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Major Thickness | 0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN |
| Inside Diameter | 1.830 INCHES MINIMUM AND 1.863 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | EXTERNAL |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 632 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MS16624-4200 | 2/2 Government specification standardization U.S. Government activity |
| 2D3-990 PC 27 | C/1 Advisory reference — outside the item-of-supply concept Lake Shore Systems, Inc. |
| 5100-200H | C/1 Advisory reference — outside the item-of-supply concept Rotor Clip Company, Inc. |
| 5100-200H | 5/9 Secondary reference Truarc Company Llc Dba Waldes Truarc |
| 676-0286-086 | C/1 Advisory reference — outside the item-of-supply concept Aurora Pump a Unit of General Signal Corp |
| MIL-DTL-21248 | 4/1 Identification reference U.S. Government activity |
| 2D3-990 ITEM 27 | C/1 Advisory reference — outside the item-of-supply concept Lake Shore Systems, Inc. |
| 3100-200-SS2 | 5/9 Secondary reference U.S. Government activity |
NSN 5325-00-688-0274 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-00-688-0274: Material Hardness Rating: 44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; Material Document and Classification: AMS 5520 ASSN STD SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: RECTANGULAR. 10 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.