The Ring,lock,serrated, cataloged under National Stock Number 5365-01-353-3729, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Williams International Co., L.l.c.. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5365-01-353-3729 |
| Primary Part Number | ST42074-01 |
| Item Name | Ring,lock,serrated |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Williams International Co., L.l.c. |
| Status | ACTIVE |
| Overall Outside Diameter | 0.540 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN |
| Pilot Diameter | 0.475 INCHES MINIMUM AND 0.485 INCHES MAXIMUM IN |
| Inside Diameter | 0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN |
| Material | IRON ALLOY 660 |
| 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 |
|---|---|
| ST42074-01 | Williams International Co., L.l.c. (USA) |
| Reference | Meaning |
|---|---|
| RL33SU-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5365-01-353-3729 is a Ring,lock,serrated, manufactured by Williams International Co., L.l.c., classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-01-353-3729 has 1 manufacturer part number on file: ST42074-01 (Williams International Co., L.l.c.).
Key specifications for ST42074-01: Overall Height: 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN; Overall Outside Diameter: 0.540 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN; Pilot Diameter: 0.475 INCHES MINIMUM AND 0.485 INCHES MAXIMUM IN; Inside Diameter: 0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN. 4 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.