The Washer,recessed, cataloged under National Stock Number 5310-00-461-2244, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Prestolite Electric Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-00-461-2244 |
| Primary Part Number | MES91 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Prestolite Electric Inc |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Outside Diameter | 1.321 INCHES NOMINAL IN |
| Recess Depth | 0.157 INCHES NOMINAL IN |
| Material Thickness | 0.062 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Hole Diameter | 0.753 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 |
|---|---|
| MES91 PRIMARY | Prestolite Electric Inc (USA) |
| Reference | Meaning |
|---|---|
| MES91 | 5/9 Secondary reference Prestolite Electric Inc |
| 5365PL0720831 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5310-00-461-2244 is a Washer,recessed, manufactured by Prestolite Electric Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-461-2244 has 1 manufacturer part number on file: MES91 (Prestolite Electric Inc).
Key specifications for MES91: Overall Height: 0.219 INCHES NOMINAL IN; Style Designator: RECESSED; Outside Diameter: 1.321 INCHES NOMINAL IN; Recess Depth: 0.157 INCHES NOMINAL IN. 6 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.