The Washer,flat, cataloged under National Stock Number 5310-00-712-3064, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sabreliner Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-712-3064 |
| Primary Part Number | 521019-15 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sabreliner Corp |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES TOP |
| Surface Finish | 32.0 MICROINCHES INNER |
| Surface Treatment Document and Classification | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.550 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AMS 5120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 1074 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.314 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Thickness | 0.014 INCHES MINIMUM AND 0.016 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 |
|---|---|
| 521019-15 PRIMARY | Sabreliner Corp (USA) |
| Reference | Meaning |
|---|---|
| 521019-15 | 5/9 Secondary reference Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines |
NSN 5310-00-712-3064 is a Washer,flat, manufactured by Sabreliner Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-712-3064 has 1 manufacturer part number on file: 521019-15 (Sabreliner Corp).
Key specifications for 521019-15: Surface Finish: 32.0 MICROINCHES TOP; Surface Finish: 32.0 MICROINCHES INNER; Surface Treatment Document and Classification: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.550 INCHES MINIMUM AND 0.570 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.