The Ring,lock,serrated, cataloged under National Stock Number 5365-00-153-2579, is classified within Federal Supply Class 5365 (Bushings, Rings, Shims, and Spacers) of the Hardware and Abrasives group. The manufacturer of record is Psi-Peripheral Support. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5365-00-153-2579 |
| Primary Part Number | 425309 |
| Item Name | Ring,lock,serrated |
| FSC / FSG | 5365 / 53 — Bushings, Rings, Shims, and Spacers |
| Manufacturer | Psi-Peripheral Support |
| Status | ACTIVE |
| Material Document and Classification | ASTM SC717-43 ASSN STD SINGLE MATERIAL RESPONSE |
| Overall Outside Diameter | 3.660 INCHES MINIMUM AND 3.669 INCHES MAXIMUM IN |
| Inside Diameter | 3.437 INCHES MINIMUM AND 3.439 INCHES MAXIMUM IN |
| Outer Serration Quantity | 161 |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 425309 PRIMARY | Psi-Peripheral Support (USA) |
| Reference | Meaning |
|---|---|
| 425309 | 3/9 Design control — primary reference Miltope Corporation |
NSN 5365-00-153-2579 is a Ring,lock,serrated, manufactured by Psi-Peripheral Support, classified under FSC 5365, Bushings, Rings, Shims, and Spacers. Status: active.
NSN 5365-00-153-2579 has 1 manufacturer part number on file: 425309 (Psi-Peripheral Support).
Key specifications for 425309: Overall Height: 0.734 INCHES NOMINAL IN; Material Document and Classification: ASTM SC717-43 ASSN STD SINGLE MATERIAL RESPONSE; Overall Outside Diameter: 3.660 INCHES MINIMUM AND 3.669 INCHES MAXIMUM IN; Inside Diameter: 3.437 INCHES MINIMUM AND 3.439 INCHES MAXIMUM IN. 5 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.