The Ring,retaining, cataloged under National Stock Number 5325-00-877-1277, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is General Electric Company. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-877-1277 |
| Primary Part Number | 177A265PC53 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Material Document and Classification | SAE 1070 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Outside Diameter | 4.737 INCHES MINIMUM AND 4.772 INCHES MAXIMUM IN |
| Major Thickness | 0.060 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN |
| Inside Diameter | 4.161 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPECIAL FLAT |
| Material | STEEL |
| 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 |
|---|---|
| 177A265PC53 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| RR-456C | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-00-877-1277 is a Ring,retaining, manufactured by General Electric Company, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-877-1277 has 1 manufacturer part number on file: 177A265PC53 (General Electric Company).
Key specifications for 177A265PC53: Usage Design: INTERNAL; Material Document and Classification: SAE 1070 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: DOUBLE OVAL; Outside Diameter: 4.737 INCHES MINIMUM AND 4.772 INCHES MAXIMUM IN. 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.