The Washer,flat, cataloged under National Stock Number 5310-01-363-2887, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ward Leonard Ct Llc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-363-2887 |
| Primary Part Number | 04-0002 ITEM 53 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Ward Leonard Ct Llc |
| Status | ACTIVE |
| Overall Diameter | 2.980 INCHES MINIMUM AND 3.020 INCHES MAXIMUM IN |
| Material Document and Classification | ASTMA366 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | ZINC OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 1009 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.550 INCHES MINIMUM AND 1.590 INCHES MAXIMUM IN |
| Thickness | 0.063 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 |
|---|---|
| 04-0002 ITEM 53 PRIMARY | Ward Leonard Ct Llc (USA) |
| 04-0060 ITEM NO 53 PRIMARY | Ward Leonard Ct Llc (USA) |
| 235A2310AF4 PRIMARY | Ward Leonard Ct Llc (USA) |
| Reference | Meaning |
|---|---|
| 04-0002 ITEM 53 | 5/9 Secondary reference Ward Leonard Ct Llc |
| 04-0060 ITEM NO 53 | 5/9 Secondary reference Ward Leonard Ct Llc |
| 235A2310AF4 | 3/9 Design control — primary reference Ward Leonard Ct Llc |
NSN 5310-01-363-2887 is a Washer,flat, manufactured by Ward Leonard Ct Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-363-2887 has 3 manufacturer part numbers on file: 04-0002 ITEM 53 (Ward Leonard Ct Llc), 04-0060 ITEM NO 53 (Ward Leonard Ct Llc), 235A2310AF4 (Ward Leonard Ct Llc).
Key specifications for 04-0002 ITEM 53: Overall Diameter: 2.980 INCHES MINIMUM AND 3.020 INCHES MAXIMUM IN; Material Document and Classification: ASTMA366 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: ZINC OVERALL. 9 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.