The Washer,flat, cataloged under National Stock Number 5310-01-382-4068, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-382-4068 |
| Primary Part Number | 90107A029 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Overall Diameter | 0.625 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 302 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.281 INCHES NOMINAL IN |
| Thickness | 0.045 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 |
|---|---|
| 90107A029 | Hali-Brite, Inc. (USA) |
| 90107A029 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| PL50301240 FIND NO.17 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| M1170-052156 | 6/9 Informative reference only Forsvarets Materielverk |
| 90107A029 | C/1 Advisory reference — outside the item-of-supply concept Sun Coast Supply Corp |
NSN 5310-01-382-4068 is a Washer,flat, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-382-4068 has 2 manufacturer part numbers on file: 90107A029 (Hali-Brite, Inc.), 90107A029 (Mcmaster-Carr Supply Co).
Key specifications for 90107A029: Overall Diameter: 0.625 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: STEEL COMP 302 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.