The Washer,flat, cataloged under National Stock Number 5310-01-088-2832, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Elettronica Aster Spa. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-088-2832 |
| Primary Part Number | 326053-50 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Elettronica Aster Spa |
| Status | ACTIVE |
| Surface Treatment Document and Classification | F-33,METHOD 2,FSCM 96214 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.149 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | OXIDE FILM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL CORROSION RESISTING OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN |
| Thickness | 0.016 INCHES NOMINAL IN |
| 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 |
|---|---|
| 326053-50 | Elettronica Aster Spa (ITA) |
| 326053-50 | Hensoldt Sensors Gmbh (DEU) |
| 326053-50 | Leonardo S.p.a. Div Electronics (ITA) |
| 326053-50 | Hensoldt Sensors Gmbh Div Seps (DEU) |
| 326053-50 | Leonardo Mw Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 326053-50 | 3/2 Design control — primary reference U.S. Government activity |
| 326053-50 | 5/9 Secondary reference Fiar Fabbrica Italiana Apparecchiature Radioelettriche Spa |
NSN 5310-01-088-2832 is a Washer,flat, manufactured by Elettronica Aster Spa, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-088-2832 has 5 manufacturer part numbers on file: 326053-50 (Elettronica Aster Spa), 326053-50 (Hensoldt Sensors Gmbh), 326053-50 (Leonardo S.p.a. Div Electronics), 326053-50 (Hensoldt Sensors Gmbh Div Seps), 326053-50 (Leonardo Mw Ltd).
Key specifications for 326053-50: Surface Treatment Document and Classification: F-33,METHOD 2,FSCM 96214 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.149 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 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.