The Washer,flat, cataloged under National Stock Number 5310-01-735-0571, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Emhart Teknologies Llc Dba Pop Fasteners Div Emhart Inds. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-735-0571 |
| Primary Part Number | ABUP 3/16200 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Emhart Teknologies Llc Dba Pop Fasteners Div Emhart Inds |
| Status | ACTIVE |
| Overall Diameter | 0.375 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | ALUMINUM OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.19 INCHES NOMINAL IN |
| Thickness | 0.06 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 |
|---|---|
| 90183A214 | Mcmaster-Carr Supply Co (USA) |
| ABUP 3/16200 PRIMARY | Emhart Teknologies Llc Dba Pop Fasteners Div Emhart Inds (USA) |
| Reference | Meaning |
|---|---|
| 11B5091842 | 7/2 Vendor item drawing reference Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army |
NSN 5310-01-735-0571 is a Washer,flat, manufactured by Emhart Teknologies Llc Dba Pop Fasteners Div Emhart Inds, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-735-0571 has 2 manufacturer part numbers on file: 90183A214 (Mcmaster-Carr Supply Co), ABUP 3/16200 (Emhart Teknologies Llc Dba Pop Fasteners Div Emhart Inds).
Key specifications for ABUP 3/16200: Overall Diameter: 0.375 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Part Name Assigned by Controlling Agency: 3/16 BLIND RIVET WASHER. 7 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.