The Ring,lock,serrated, cataloged under National Stock Number 5365-01-700-5596, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5365-01-700-5596 |
| Primary Part Number | MS51990-111P |
| Item Name | Ring,lock,serrated |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS-QQ-P-416, TYPE II, CLASS 3 ASSN STD SINGLE TREATMENT RESPONSE |
| Material Document and Classification | AMS6370 AEROSPACE MATERIAL SPEC STD 1ST MATERIAL RESPONSE OR AMS6382 AEROSPACE MATERIAL SPEC STD 2ND MATERIAL RESPONSE OR AMS6322 AEROSPACE MATERIAL SPEC STD 3RD MATERIAL RESPONSE |
| Overall Outside Diameter | 1.036 INCHES MINIMUM AND 1.045 INCHES MAXIMUM IN |
| Inner Serration Quantity | 30 |
| Pilot Diameter | 0.953 INCHES MINIMUM AND 0.963 INCHES MAXIMUM IN |
| Inside Diameter | 0.905 INCHES MINIMUM AND 0.912 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE |
| Outer Serration Quantity | 20 |
| Material | STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8740 |
| 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 |
|---|---|
| MS51990-111P PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AS51990 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 5365-01-700-5596 is a Ring,lock,serrated, manufactured by Sae International Dba Sae International, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-700-5596 has 1 manufacturer part number on file: MS51990-111P (Sae International Dba Sae International).
Key specifications for MS51990-111P: Overall Height: 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS-QQ-P-416, TYPE II, CLASS 3 ASSN STD SINGLE TREATMENT RESPONSE; Material Document and Classification: AMS6370 AEROSPACE MATERIAL SPEC STD 1ST MATERIAL RESPONSE OR AMS6382 AEROSPACE MATERIAL SPEC STD 2ND MATERIAL RESPONSE OR AMS6322 AEROSPACE MATERIAL SPEC STD 3RD MATERIAL RESPONSE; Overall Outside Diameter: 1.036 INCHES MINIMUM AND 1.045 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.