The Washer,flat, cataloged under National Stock Number 5310-01-276-1659, 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 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-276-1659 |
| Primary Part Number | 513-5359573 PIECE 13 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 1.120 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A108,GRADE 1018 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 1018 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.410 INCHES NOMINAL IN |
| Thickness | 0.120 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 |
|---|---|
| 513-5359573 PIECE 13 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 513-5359573 DETAIL 24F | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 513-5359573 PIECE 13 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-276-1659 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-276-1659 has 1 manufacturer part number on file: 513-5359573 PIECE 13 (Naval Sea Systems Command).
Key specifications for 513-5359573 PIECE 13: Overall Diameter: 1.120 INCHES NOMINAL IN; Material Document and Classification: ASTM A108,GRADE 1018 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Special Features: MADE FROM NSN 9510-00-287-9403. 8 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.