The Washer,split, cataloged under National Stock Number 5310-01-681-0190, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Taylor Investments Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-681-0190 |
| Primary Part Number | 29-43753-03-022 |
| Item Name | Washer,split |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Taylor Investments Llc |
| Status | ACTIVE |
| Hardness Rating | 35.0 ROCKWELL C NOMINAL |
| Outside Diameter | 0.457 INCHES NOMINAL IN |
| Specification/standard Data | 05047-ASME B18.2.1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Color | BLACK OVERALL |
| Surface Treatment | OXIDE OVERALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Closed Inside Diameter | 0.322 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 |
|---|---|
| 29-43753-03-022 PRIMARY | Taylor Investments Llc (USA) |
| Reference | Meaning |
|---|---|
| 29-43753-03-022 | 3/9 Design control — primary reference Huntington Mechanical Laboratories, Inc. |
| 29-43753-01 ITEM 28 | C/1 Advisory reference — outside the item-of-supply concept Huntington Mechanical Laboratories, Inc. |
NSN 5310-01-681-0190 is a Washer,split, manufactured by Taylor Investments Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-681-0190 has 1 manufacturer part number on file: 29-43753-03-022 (Taylor Investments Llc).
Key specifications for 29-43753-03-022: Hardness Rating: 35.0 ROCKWELL C NOMINAL; Outside Diameter: 0.457 INCHES NOMINAL IN; Specification/standard Data: 05047-ASME B18.2.1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Color: BLACK 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.