The Ring,retaining, cataloged under National Stock Number 5325-00-533-9971, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-00-533-9971 |
| Primary Part Number | 84539 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Usage Design | EXTERNAL |
| Cross-Sectional Shape Style | ROUNDED OUTSIDE CORNERS |
| Outside Diameter | 3.720 INCHES MINIMUM AND 3.780 INCHES MAXIMUM IN |
| Major Thickness | 0.106 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | INTERNAL |
| 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 |
|---|---|
| 84539 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| 84539 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
NSN 5325-00-533-9971 is a Ring,retaining, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-533-9971 has 1 manufacturer part number on file: 84539 (Honeywell International Inc. Div Aerospace - Torrance).
Key specifications for 84539: Usage Design: EXTERNAL; Cross-Sectional Shape Style: ROUNDED OUTSIDE CORNERS; Outside Diameter: 3.720 INCHES MINIMUM AND 3.780 INCHES MAXIMUM IN; Major Thickness: 0.106 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN. 7 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.