The Washer,flat, cataloged under National Stock Number 5310-01-508-8017, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-508-8017 |
| Primary Part Number | 93016J4303 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service |
| Status | ACTIVE |
| Overall Diameter | 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN |
| Supplementary Features | MATERIAL IS SAE 4140. LEADED. H.R. ALLOY STEEL, H.T. TO 28-34 RC; ALL SURFACES MACHINED TO 125 RMS |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Inside Left Corner Chamfer Angle | 44.0 DEGREES MINIMUM AND 46.0 DEGREES MAXIMUM |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 4140 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.254 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN |
| Thickness | 0.248 INCHES MINIMUM AND 0.252 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 |
|---|---|
| 5086D-16040 | The Gorman-Rupp Company Div Gorman-Rupp (USA) |
| 93016J4303 PRIMARY | Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service (USA) |
| Reference | Meaning |
|---|---|
| 93016J4303 | 5/9 Secondary reference The Gorman-Rupp Company Div Gorman-Rupp |
NSN 5310-01-508-8017 is a Washer,flat, manufactured by Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-508-8017 has 2 manufacturer part numbers on file: 5086D-16040 (The Gorman-Rupp Company Div Gorman-Rupp), 93016J4303 (Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service).
Key specifications for 93016J4303: Overall Diameter: 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN; Supplementary Features: MATERIAL IS SAE 4140. LEADED. H.R. ALLOY STEEL, H.T. TO 28-34 RC; ALL SURFACES MACHINED TO 125 RMS; Hardness Rating: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM; Cross-Sectional Shape Style: RECTANGULAR. 10 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.