The Washer,finishing, cataloged under National Stock Number 5310-01-030-9221, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-030-9221 |
| Primary Part Number | A60A1250 |
| Item Name | Washer,finishing |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ES-F59-2,FSCM 92003 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | FINISHING |
| Material Document and Classification | MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.440 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN |
| Material Thickness | 0.004 INCHES MINIMUM AND 0.008 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 302 OVERALL |
| Hole Diameter | 0.256 INCHES MINIMUM AND 0.258 INCHES MAXIMUM 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 |
|---|---|
| A60A1250 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics (USA) |
| Reference | Meaning |
|---|---|
| A60A1250 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5310-01-030-9221 is a Washer,finishing, manufactured by Parker-Hannifin Corporation Dba Pneutronics, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-030-9221 has 1 manufacturer part number on file: A60A1250 (Parker-Hannifin Corporation Dba Pneutronics).
Key specifications for A60A1250: Surface Treatment Document and Classification: ES-F59-2,FSCM 92003 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Style Designator: FINISHING; Material Document and Classification: MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.440 INCHES MINIMUM AND 0.446 INCHES MAXIMUM 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.