The Washer,flat, cataloged under National Stock Number 5310-01-436-2396, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lake Shore Systems, Inc.. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-436-2396 |
| Primary Part Number | 7D3-04543-8 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Overall Diameter | 0.500 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | PLASTIC ACETAL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.189 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| Thickness | 0.060 INCHES MINIMUM AND 0.063 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 |
|---|---|
| 7D3-04543-8 PRIMARY | Lake Shore Systems, Inc. (USA) |
| 7B1-6139 PRIMARY | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 7B1-06139 | C/1 Advisory reference — outside the item-of-supply concept Lake Shore Systems, Inc. |
NSN 5310-01-436-2396 is a Washer,flat, manufactured by Lake Shore Systems, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-436-2396 has 2 manufacturer part numbers on file: 7D3-04543-8 (Lake Shore Systems, Inc.), 7B1-6139 (Lake Shore Systems, Inc.).
Key specifications for 7D3-04543-8: Overall Diameter: 0.500 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: PLASTIC ACETAL OVERALL. 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.