The Ring,retaining, cataloged under National Stock Number 5325-01-724-3731, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Hartzell Propeller Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-724-3731 |
| Primary Part Number | B-5129 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Hartzell Propeller Llc |
| Status | ACTIVE |
| Cross-Sectional Shape Style | ROUND |
| 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 |
|---|---|
| B-5129 PRIMARY | Hartzell Propeller Llc (USA) |
| 9682916207 | Pilatus Aircraft Ltd (CHE) |
NSN 5325-01-724-3731 is a Ring,retaining, manufactured by Hartzell Propeller Llc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-724-3731 has 2 manufacturer part numbers on file: B-5129 (Hartzell Propeller Llc), 9682916207 (Pilatus Aircraft Ltd).
Key specifications for B-5129: Cross-Sectional Shape Style: ROUND; Part Name Assigned by Controlling Agency: RING, BACK-UP; End Item Identification: 1510-66-163-8909; PC-21 PILATUS TRAINER AIRCRAFT. 1 specification is 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.