The Ring,retaining, cataloged under National Stock Number 5325-00-727-4763, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Timken Gears & Services Inc. Div Philadelphia Gear. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-727-4763 |
| Primary Part Number | 177A265 PIECE 2 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Timken Gears & Services Inc. Div Philadelphia Gear |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Material Document and Classification | SAE 1070 ASSN STD 1ST MATERIAL RESPONSE OR SAE 1074 ASSN STD 2ND MATERIAL RESPONSE OR SAE 1078 ASSN STD 3RD MATERIAL RESPONSE OR SAE 1080 ASSN STD 4TH MATERIAL RESPONSE OR SAE 1084 ASSN STD 5TH MATERIAL RESPONSE OR SAE 1085 ASSN STD 6TH MATERIAL RESPONSE OR SAE 1086 ASSN STD 7TH MATERIAL RESPONSE OR SAE 1090 ASSN STD 8TH MATERIAL RESPONSE |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Outside Diameter | 20.173 INCHES MINIMUM AND 20.373 INCHES MAXIMUM IN |
| Major Thickness | 0.080 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN |
| Inside Diameter | 19.423 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPIRAL |
| Material | STEEL COMP 1070 OR STEEL COMP 1074 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 |
| Part Number | Manufacturer |
|---|---|
| 177A265 PIECE 2 | Timken Gears & Services Inc. Div Philadelphia Gear (USA) |
| Reference | Meaning |
|---|---|
| 177A265 PIECE 2 | 5/9 Secondary reference General Electric Company |
| PRA-2017 | 3/2 Design control — primary reference U.S. Government activity |
| 177A265 PIECE 2 | 5/9 Secondary reference General Electric Company |
NSN 5325-00-727-4763 is a Ring,retaining, manufactured by Timken Gears & Services Inc. Div Philadelphia Gear, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-727-4763 has 1 manufacturer part number on file: 177A265 PIECE 2 (Timken Gears & Services Inc. Div Philadelphia Gear).
Key specifications for 177A265 PIECE 2: Usage Design: INTERNAL; Material Document and Classification: SAE 1070 ASSN STD 1ST MATERIAL RESPONSE OR SAE 1074 ASSN STD 2ND MATERIAL RESPONSE OR SAE 1078 ASSN STD 3RD MATERIAL RESPONSE OR SAE 1080 ASSN STD 4TH MATERIAL RESPONSE OR SAE 1084 ASSN STD 5TH MATERIAL RESPONSE OR SAE 1085 ASSN STD 6TH MATERIAL RESPONSE OR SAE 1086 ASSN STD 7TH MATERIAL RESPONSE OR SAE 1090 ASSN STD 8TH MATERIAL RESPONSE; Cross-Sectional Shape Style: DOUBLE OVAL; Outside Diameter: 20.173 INCHES MINIMUM AND 20.373 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.