The Washer,flat, cataloged under National Stock Number 5310-01-733-3863, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Abb Installation Products Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-733-3863 |
| Primary Part Number | 5306 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Abb Installation Products Inc |
| Status | ACTIVE |
| Overall Diameter | 2.42 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | BLANK RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL CORROSION RESISTING AND RUBBER OVERALL |
| Center Hole Shape Style | ROUND |
| Thickness | 0.18 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 |
|---|---|
| 5306 PRIMARY | Abb Installation Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 1110700853 | 7/2 Vendor item drawing reference Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army |
NSN 5310-01-733-3863 is a Washer,flat, manufactured by Abb Installation Products Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-733-3863 has 1 manufacturer part number on file: 5306 (Abb Installation Products Inc).
Key specifications for 5306: Overall Diameter: 2.42 INCHES NOMINAL IN; Cross-Sectional Shape Style: BLANK RECTANGULAR; Special Features: MUST WORK WITH CONNECTOR IN 1110700843; Peripheral Shape Style: ROUND. 6 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.