The Washer,flat, cataloged under National Stock Number 5310-01-242-4305, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Link-Belt Cranes, L.p., Lllp. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-242-4305 |
| Primary Part Number | JU4 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Link-Belt Cranes, L.p., Lllp |
| Status | ACTIVE |
| Overall Diameter | 1.248 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | IRON ALLOY OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.750 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Thickness | 0.240 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 |
|---|---|
| JU4 PRIMARY | Link-Belt Cranes, L.p., Lllp (USA) |
NSN 5310-01-242-4305 is a Washer,flat, manufactured by Link-Belt Cranes, L.p., Lllp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-242-4305 has 1 manufacturer part number on file: JU4 (Link-Belt Cranes, L.p., Lllp).
Key specifications for JU4: Overall Diameter: 1.248 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Special Features: SLOTTED ON WASHER FACE 110 DEG MIN AND 112 DEG MAX; Peripheral Shape Style: ROUND. 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.