The Washer,flat, cataloged under National Stock Number 5310-01-466-5180, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-466-5180 |
| Primary Part Number | MS3445E-27B |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Overall Diameter | 1.507 INCHES MINIMUM AND 1.529 INCHES MAXIMUM IN |
| Specification/standard Data | 96906-MS3445 GOVERNMENT STANDARD |
| Surface Treatment | CADMIUM OVERALL |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| MS3445E-27B PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| SAE-AS81703 | 3/1 Design control — primary reference Sae International Dba Sae International |
| MIL-C-81703 | 5/9 Secondary reference U.S. Government activity |
| MS3445E-27B | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-466-5180 is a Washer,flat, manufactured by Sae International Dba Sae International, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-466-5180 has 1 manufacturer part number on file: MS3445E-27B (Sae International Dba Sae International).
Key specifications for MS3445E-27B: Overall Diameter: 1.507 INCHES MINIMUM AND 1.529 INCHES MAXIMUM IN; Specification/standard Data: 96906-MS3445 GOVERNMENT STANDARD; Special Features: NOTICE OF INACTIVATION FOR NEW DESIGN, 25 SEPT 96, MS3445(AS) IS INACTIVE FOR NEW DESIGN AND IS NO LONGER USED, EXCEPT FOR REPLACEMENT PURPOSES; Surface Treatment: CADMIUM OVERALL. 4 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.