The Washer,recessed, cataloged under National Stock Number 5310-00-009-8541, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-009-8541 |
| Primary Part Number | F310986 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Outside Diameter | 1.508 INCHES NOMINAL IN |
| Material Thickness | 0.281 INCHES NOMINAL IN |
| Recess Diameter | 1.200 INCHES NOMINAL IN |
| Color | YELLOW OVERALL |
| Surface Treatment | PAINT OVERALL |
| Material | ALUMINUM ALLOY OVERALL |
| Hole Diameter | 0.995 INCHES NOMINAL IN |
| Recess Angle | 100.0 DEGREES NOMINAL |
| 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 |
|---|---|
| F310986 PRIMARY | Naval Inventory Control Point Mechanicsburg (USA) |
NSN 5310-00-009-8541 is a Washer,recessed, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-009-8541 has 1 manufacturer part number on file: F310986 (Naval Inventory Control Point Mechanicsburg).
Key specifications for F310986: Style Designator: RECESSED; Outside Diameter: 1.508 INCHES NOMINAL IN; Material Thickness: 0.281 INCHES NOMINAL IN; Recess Diameter: 1.200 INCHES NOMINAL IN. 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.