The Ring,retaining, cataloged under National Stock Number 5325-01-700-5634, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-700-5634 |
| Primary Part Number | M2742630167C |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Surface Treatment Document and Classification | MIL-DTL-16232, TYPE E, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE |
| Material Document and Classification | SAE 1070-1090 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Outside Diameter | 2.929 INCHES NOMINAL IN |
| Major Thickness | 0.049 INCHES NOMINAL IN |
| Inside Diameter | 2.613 INCHES NOMINAL IN |
| Ring Style | SPIRAL |
| Surface Treatment | PHOSPHATE |
| Material | STEEL COMP 1070 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1090 OR STEEL COMP 1072 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1085 OR STEEL COMP 1086 |
| 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 |
|---|---|
| M2742630167C | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| MIL-DTL-27426 | 4/1 Identification reference U.S. Government activity |
| M2742630167C | 2/2 Government specification standardization U.S. Government activity |
NSN 5325-01-700-5634 is a Ring,retaining, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-700-5634 has 1 manufacturer part number on file: M2742630167C (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for M2742630167C: Usage Design: INTERNAL; Surface Treatment Document and Classification: MIL-DTL-16232, TYPE E, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE; Material Document and Classification: SAE 1070-1090 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: DOUBLE OVAL. 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.