The Ring,retaining, cataloged under National Stock Number 5325-01-421-2063, 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10 specifications, cited from the U.S. Government catalog. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-421-2063 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Status | ACTIVE |
| Material Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| Usage Design | EXTERNAL |
| Material Document and Classification | SAE 1060 ASSN STD 1ST MATERIAL RESPONSE OR SAE 1064 ASSN STD 2ND MATERIAL RESPONSE OR SAE 1065 ASSN STD 3RD MATERIAL RESPONSE OR SAE 1066 ASSN STD 4TH MATERIAL RESPONSE OR SAE 1069 ASSN STD 5TH MATERIAL RESPONSE OR SAE 1070 ASSN STD 6TH MATERIAL RESPONSE OR SAE 1072 ASSN STD 7TH MATERIAL RESPONSE OR SAE 1074 ASSN STD 8TH MATERIAL RESPONSE OR SAE 1075 ASSN STD 9TH MATERIAL RESPONSE OR SAE 1078 ASSN STD 10TH MATERIAL RESPONSE OR SAE 1080 ASSN STD 11TH MATERIAL RESPONSE OR SAE 1084 ASSN STD 12TH MATERIAL RESPONSE OR SAE 1085 ASSN STD 13TH MATERIAL RESPONSE OR SAE 1086 ASSN STD 14TH MATERIAL RESPONSE OR SAE 1090 ASSN STD 15TH MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECTANGULAR |
| Major Thickness | 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN |
| Inside Diameter | 5.816 INCHES MINIMUM AND 5.886 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | EXTERNAL |
| Surface Treatment | PHOSPHATE |
| Material | STEEL COMP 1060 OR STEEL COMP 1064 OR STEEL COMP 1065 OR STEEL COMP 1566 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1572 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1085 OR STEEL COMP 1086 OR STEEL COMP 1090 |
| 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 |
|---|---|
| 1400-625-S-PP | 5/9 Secondary reference Seeger Inc Anderton-United Products Div |
| 1479ITEM 68 | 5/1 Secondary reference Gulf Coast Holdings, Inc Dba Unidynamics |
| 5100-625-S-PP | C/1 Advisory reference — outside the item-of-supply concept Rotor Clip Company, Inc. |
| 5100-625-S-PP | 5/9 Secondary reference Truarc Company Llc Dba Waldes Truarc |
| 1479 ITEM 68 | 5/9 Secondary reference U.S. Government activity |
| MIL-DTL-21248 | 4/1 Identification reference U.S. Government activity |
| 3100-625-ST-PA | 5/9 Secondary reference U.S. Government activity |
| R271NAA087NN519NNQA1 | 5/9 Secondary reference The American Society of Mechanical Engineers |
| SH-625-ST-PA | 5/1 Secondary reference Rotor Clip Company, Inc. |
| MS16624-3625 | 2/2 Government specification standardization U.S. Government activity |
NSN 5325-01-421-2063 is a Ring,retaining, classified under FSC 5325, Fastening Devices. Status: active.
Key specifications for 5325-01-421-2063: Material Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM; Usage Design: EXTERNAL; Material Document and Classification: SAE 1060 ASSN STD 1ST MATERIAL RESPONSE OR SAE 1064 ASSN STD 2ND MATERIAL RESPONSE OR SAE 1065 ASSN STD 3RD MATERIAL RESPONSE OR SAE 1066 ASSN STD 4TH MATERIAL RESPONSE OR SAE 1069 ASSN STD 5TH MATERIAL RESPONSE OR SAE 1070 ASSN STD 6TH MATERIAL RESPONSE OR SAE 1072 ASSN STD 7TH MATERIAL RESPONSE OR SAE 1074 ASSN STD 8TH MATERIAL RESPONSE OR SAE 1075 ASSN STD 9TH MATERIAL RESPONSE OR SAE 1078 ASSN STD 10TH MATERIAL RESPONSE OR SAE 1080 ASSN STD 11TH MATERIAL RESPONSE OR SAE 1084 ASSN STD 12TH MATERIAL RESPONSE OR SAE 1085 ASSN STD 13TH MATERIAL RESPONSE OR SAE 1086 ASSN STD 14TH MATERIAL RESPONSE OR SAE 1090 ASSN STD 15TH 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.