The Washer,flat, cataloged under National Stock Number 5310-01-560-0018, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Gardner Spring Inc. 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 | 5310-01-560-0018 |
| Primary Part Number | PD37-08-1 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Gardner Spring Inc |
| Status | ACTIVE |
| Overall Diameter | 0.875 INCHES NOMINAL IN |
| Supplementary Features | DEFLECTION 0.0125; LOAD DEFECTION 518.07 LBS; FITS BOLT SIZE 0.375 LBS |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | PLASTIC OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.406 INCHES NOMINAL IN |
| Thickness | 0.125 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 |
|---|---|
| PD37-08-1 PRIMARY | Gardner Spring Inc (USA) |
NSN 5310-01-560-0018 is a Washer,flat, manufactured by Gardner Spring Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-560-0018 has 1 manufacturer part number on file: PD37-08-1 (Gardner Spring Inc).
Key specifications for PD37-08-1: Overall Diameter: 0.875 INCHES NOMINAL IN; Supplementary Features: DEFLECTION 0.0125; LOAD DEFECTION 518.07 LBS; FITS BOLT SIZE 0.375 LBS; Cross-Sectional Shape Style: RECTANGULAR; Special Features: POLYURETHANE DISC SPRINGS ARE USED IN APPLICATIONS WHERE MAGNETISM, CORROSION OR VIBRATION PREVENTS THE USAGE OF STANDARD STEEL COMPRESSION SPRINGS. THEY ARE ALSO USEFUL IN HIGH LOAD APPLICATIONS IN CONFINED SPACES. 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.