The Washer,recessed, cataloged under National Stock Number 5310-00-558-9118, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Emerson Electric Co Alco Controls Div. Government technical data includes 8 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 | 5310-00-558-9118 |
| Primary Part Number | W20886 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Emerson Electric Co Alco Controls Div |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Material Document and Classification | 101 FSCM 71379 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.265 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN |
| Material Thickness | 0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN |
| Recess Diameter | 0.134 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Hole Diameter | 0.126 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN |
| Recess Angle | 45.0 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 |
|---|---|
| W20886 PRIMARY | Emerson Electric Co Alco Controls Div (USA) |
NSN 5310-00-558-9118 is a Washer,recessed, manufactured by Emerson Electric Co Alco Controls Div, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-558-9118 has 1 manufacturer part number on file: W20886 (Emerson Electric Co Alco Controls Div).
Key specifications for W20886: Overall Height: 0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN; Style Designator: RECESSED; Material Document and Classification: 101 FSCM 71379 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.265 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN. 8 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.