The Washer,flat, cataloged under National Stock Number 5310-01-499-4174, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Legacy Am&m. Government technical data includes 12 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 | 5310-01-499-4174 |
| Primary Part Number | LD153-0035-0009 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES TOP |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 1.420 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN |
| Material Document and Classification | AMS5735 ASSN STD 1ST MATERIAL RESPONSE OR AMS5737 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Color | YELLOW OVERALL |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | IRON ALLOY 660 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.850 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN |
| Thickness | 0.054 INCHES MINIMUM AND 0.070 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 |
|---|---|
| LD153-0035-0009 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
NSN 5310-01-499-4174 is a Washer,flat, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-499-4174 has 1 manufacturer part number on file: LD153-0035-0009 (The Boeing Company Div Legacy Am&m).
Key specifications for LD153-0035-0009: Surface Finish: 125.0 MICROINCHES TOP; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 1.420 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN; Material Document and Classification: AMS5735 ASSN STD 1ST MATERIAL RESPONSE OR AMS5737 ASSN STD 2ND MATERIAL RESPONSE OVERALL. 12 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.