The Ring,retaining, cataloged under National Stock Number 5325-00-925-6815, 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 10 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-925-6815 |
| Primary Part Number | A1854 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Hartzell Propeller Llc |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| End Style | 90 DEGREE PARALLEL |
| Material Diameter | 0.062 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5112 ASSN STD SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 3.874 INCHES NOMINAL IN |
| Inside Diameter | 3.750 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | STRAIGHT GAP |
| Material | STEEL |
| 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 |
|---|---|
| A1854 PRIMARY | Hartzell Propeller Llc (USA) |
NSN 5325-00-925-6815 is a Ring,retaining, manufactured by Hartzell Propeller Llc, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-925-6815 has 1 manufacturer part number on file: A1854 (Hartzell Propeller Llc).
2 possible matches (shared part number, not a government interchangeability claim): 4920-01-287-6104, 8455-01-673-9001. Verify interchangeability with system specifications before substitution.
Key specifications for A1854: Usage Design: INTERNAL; End Style: 90 DEGREE PARALLEL; Material Diameter: 0.062 INCHES NOMINAL IN; Material Document and Classification: AMS 5112 ASSN STD SINGLE MATERIAL RESPONSE. 10 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.