The Washer,recessed, cataloged under National Stock Number 5310-00-187-9727, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Pilatus Aircraft Ltd. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-187-9727 |
| Primary Part Number | 9682013413 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Pilatus Aircraft Ltd |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES BOTTOM |
| Surface Finish | 63.0 MICROINCHES TOP |
| Top Recess Diameter | 0.236 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Bottom Recess Diameter | 0.236 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Hardness Rating | 29.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM |
| Top Recess Angle | 86.0 DEGREES MINIMUM AND 94.0 DEGREES MAXIMUM |
| Style Designator | RECESSED BOTH SIDES |
| Material Document and Classification | AMS 5516 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5537 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Material Thickness | 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN |
| Bottom Recess Angle | 86.0 DEGREES MINIMUM AND 94.0 DEGREES MAXIMUM |
| Material | COBALT COMP L-605 OR STEEL COMP 302 OVERALL |
| Hole Diameter | 0.192 INCHES MINIMUM AND 0.200 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 |
|---|---|
| 9682013413 | Pilatus Aircraft Ltd (CHE) |
| Reference | Meaning |
|---|---|
| 10116659 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| MS9768-09 | 2/2 Government specification standardization U.S. Government activity |
| 5310PL0212538 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5310-00-187-9727 is a Washer,recessed, manufactured by Pilatus Aircraft Ltd, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-187-9727 has 1 manufacturer part number on file: 9682013413 (Pilatus Aircraft Ltd).
Key specifications for 9682013413: Surface Finish: 63.0 MICROINCHES BOTTOM; Surface Finish: 63.0 MICROINCHES TOP; Top Recess Diameter: 0.236 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Bottom Recess Diameter: 0.236 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN. 13 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.