The Washer,flat, cataloged under National Stock Number 5310-01-371-2390, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Metric and Multistandard Components Corp. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-371-2390 |
| Primary Part Number | DIN125A 3MM |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Metric and Multistandard Components Corp |
| Status | ACTIVE |
| Overall Diameter | 6.7 MILLIMETERS MINIMUM AND 7.0 MILLIMETERS MAXIMUM MM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 3.2 MILLIMETERS MINIMUM AND 3.4 MILLIMETERS MAXIMUM MM |
| Thickness | 0.4 MILLIMETERS MINIMUM AND 0.6 MILLIMETERS MAXIMUM MM |
| 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 |
|---|---|
| BS4320-M3TYPEA | Bsi Standards Limited (GBR) |
| DIN125A 3MM PRIMARY | Metric and Multistandard Components Corp (USA) |
| DIN 125A 3 | Metric and Multistandard Components Corp (USA) |
| Reference | Meaning |
|---|---|
| DIN 125A M3 | 5/9 Secondary reference Metric and Multistandard Components Corp |
| 5310PL2132324 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5310-01-371-2390 is a Washer,flat, manufactured by Metric and Multistandard Components Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-371-2390 has 3 manufacturer part numbers on file: BS4320-M3TYPEA (Bsi Standards Limited), DIN125A 3MM (Metric and Multistandard Components Corp), DIN 125A 3 (Metric and Multistandard Components Corp).
Key specifications for DIN125A 3MM: Overall Diameter: 6.7 MILLIMETERS MINIMUM AND 7.0 MILLIMETERS MAXIMUM MM; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: STEEL OVERALL. 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.