The Washer,flat, cataloged under National Stock Number 5310-01-430-4736, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-430-4736 |
| Primary Part Number | 754-6405242 FIND 40 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Outside Left Corner Chamfer Angle | 45.0 DEGREES NOMINAL |
| Overall Diameter | 9.000 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-286,FORM 6, COND HR (ANL),FIN A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Inside Left Corner Chamfer Angle | 45.0 DEGREES NOMINAL |
| Nondefinitive Spec/std Data | 6 FORM AND A CONDITION AND A FINISH |
| Peripheral Shape Style | ROUND |
| Material | COPPER ALLOY OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.312 INCHES NOMINAL IN |
| Thickness | 1.000 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 |
|---|---|
| 754-6405242 FIND 40 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 211069249 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| DF2230-2210-40 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 5310-01-430-4736 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-430-4736 has 1 manufacturer part number on file: 754-6405242 FIND 40 (Naval Sea Systems Command).
Key specifications for 754-6405242 FIND 40: Outside Left Corner Chamfer Angle: 45.0 DEGREES NOMINAL; Overall Diameter: 9.000 INCHES NOMINAL IN; Material Document and Classification: QQ-N-286,FORM 6, COND HR (ANL),FIN A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 11 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.