The Ring,retaining, cataloged under National Stock Number 5325-01-571-2636, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-01-571-2636 |
| Primary Part Number | AER01X028000GFSAT1 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Material Hardness Rating | 51.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Specification/standard Data | 05047-ASTM B695, TYPE 2.ASTM B695, TYPE 2CLASS 40 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Major Thickness | 0.025 INCHES NOMINAL IN |
| Inside Diameter | 0.256 INCHES NOMINAL IN |
| Ring Style | INTERNAL |
| Surface Treatment | ZINC |
| 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 |
|---|---|
| AER01X028000GFSAT1 PRIMARY | The American Society of Mechanical Engineers (USA) |
| Reference | Meaning |
|---|---|
| R271NAA0028NN056NNDE1 | 5/9 Secondary reference U.S. Government activity |
NSN 5325-01-571-2636 is a Ring,retaining, manufactured by The American Society of Mechanical Engineers, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-571-2636 has 1 manufacturer part number on file: AER01X028000GFSAT1 (The American Society of Mechanical Engineers).
Key specifications for AER01X028000GFSAT1: Material Hardness Rating: 51.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM; Cross-Sectional Shape Style: RECTANGULAR; Specification/standard Data: 05047-ASTM B695, TYPE 2.ASTM B695, TYPE 2CLASS 40 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Major Thickness: 0.025 INCHES NOMINAL IN. 8 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.