The Washer,flat, cataloged under National Stock Number 5310-01-616-8384, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fastenal Company Div Alga. 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-616-8384 |
| Primary Part Number | DIN 125-A2-M2.5 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fastenal Company Div Alga |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ASTM A380 COAT NATIONAL STD/SPEC 1ST TREATMENT RESPONSE OVERALL |
| Overall Diameter | 5.700 MILLIMETERS MINIMUM AND 6.000 MILLIMETERS MAXIMUM MM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL CORROSION RESISTING OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 2.700 MILLIMETERS MINIMUM AND 2.840 MILLIMETERS MAXIMUM MM |
| Thickness | 0.450 MILLIMETERS MINIMUM AND 0.550 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 |
|---|---|
| DIN 125-A2-M2.5 PRIMARY | Fastenal Company Div Alga (USA) |
NSN 5310-01-616-8384 is a Washer,flat, manufactured by Fastenal Company Div Alga, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-616-8384 has 1 manufacturer part number on file: DIN 125-A2-M2.5 (Fastenal Company Div Alga).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-659-5952. Verify interchangeability with system specifications before substitution.
Key specifications for DIN 125-A2-M2.5: Surface Treatment Document and Classification: ASTM A380 COAT NATIONAL STD/SPEC 1ST TREATMENT RESPONSE OVERALL; Overall Diameter: 5.700 MILLIMETERS MINIMUM AND 6.000 MILLIMETERS MAXIMUM MM; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 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.