The Washer,flat, cataloged under National Stock Number 5310-01-528-9271, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is John Crane, Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-528-9271 |
| Primary Part Number | H-42409-8 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | John Crane, Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| H-42409-8 PRIMARY | John Crane, Inc (USA) |
NSN 5310-01-528-9271 is a Washer,flat, manufactured by John Crane, Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-528-9271 has 1 manufacturer part number on file: H-42409-8 (John Crane, Inc).
Key specifications for H-42409-8: Special Features: MATERIAL ALUMINUM BRONZE; End Item Identification: NSN 1925-01-509-7013 TUGBOAT. 0 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.