The Washer,flat, cataloged under National Stock Number 5310-01-113-9833, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-113-9833 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Overall Diameter | 1.470 INCHES MINIMUM AND 1.530 INCHES MAXIMUM IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM |
| Material Document and Classification | AISI ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 1095 OR STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 6150 OR STEEL COMP 8740 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.505 INCHES MINIMUM AND 0.525 INCHES MAXIMUM IN |
| Thickness | 0.080 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 |
| Reference | Meaning |
|---|---|
| A51B25129-11 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| A51B25129-11 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation |
| A51B25129-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
NSN 5310-01-113-9833 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-113-9833: Overall Diameter: 1.470 INCHES MINIMUM AND 1.530 INCHES MAXIMUM IN; Hardness Rating: 39.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM; Material Document and Classification: AISI ASSN STD ALL MATERIAL RESPONSES OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 9 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.