The Ring,retaining, cataloged under National Stock Number 5325-01-259-8170, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-259-8170 |
| Primary Part Number | 177A265-28 |
| 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 ASSN STD 1ST MATERIAL RESPONSE OR SAE 1072 ASSN STD 2ND MATERIAL RESPONSE OR SAE 1074 ASSN STD 3RD MATERIAL RESPONSE OR SAE 1075 ASSN STD 4TH MATERIAL RESPONSE OR SAE 1078 ASSN STD 5TH MATERIAL RESPONSE OR SAE 1080 ASSN STD 6TH MATERIAL RESPONSE OR SAE 1084 ASSN STD 7TH MATERIAL RESPONSE OR SAE 1085 ASSN STD 8TH MATERIAL RESPONSE OR SAE 1086 ASSN STD 9TH MATERIAL RESPONSE OR SAE 1090 ASSN STD 10TH MATERIAL RESPONSE |
| Cross-Sectional Shape Style | DOUBLE OVAL |
| Outside Diameter | 8.685 INCHES MINIMUM AND 8.755 INCHES MAXIMUM IN |
| Major Thickness | 0.127 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN |
| Inside Diameter | 7.935 INCHES MINIMUM AND 8.005 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPIRAL |
| Material | 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 |
| Part Number | Manufacturer |
|---|---|
| 177A265-28 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 3181139 PIECE 28 | 5/2 Secondary reference U.S. Government activity |
| PRC-868 | 5/2 Secondary reference U.S. Government activity |
| 177A265-28 | C/1 Advisory reference — outside the item-of-supply concept General Electric Company |
NSN 5325-01-259-8170 is a Ring,retaining, manufactured by General Electric Company, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-259-8170 has 1 manufacturer part number on file: 177A265-28 (General Electric Company).
Key specifications for 177A265-28: Usage Design: INTERNAL; Material Document and Classification: SAE 1070 ASSN STD 1ST MATERIAL RESPONSE OR SAE 1072 ASSN STD 2ND MATERIAL RESPONSE OR SAE 1074 ASSN STD 3RD MATERIAL RESPONSE OR SAE 1075 ASSN STD 4TH MATERIAL RESPONSE OR SAE 1078 ASSN STD 5TH MATERIAL RESPONSE OR SAE 1080 ASSN STD 6TH MATERIAL RESPONSE OR SAE 1084 ASSN STD 7TH MATERIAL RESPONSE OR SAE 1085 ASSN STD 8TH MATERIAL RESPONSE OR SAE 1086 ASSN STD 9TH MATERIAL RESPONSE OR SAE 1090 ASSN STD 10TH MATERIAL RESPONSE; Cross-Sectional Shape Style: DOUBLE OVAL; Outside Diameter: 8.685 INCHES MINIMUM AND 8.755 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.