The Washer,flat, cataloged under National Stock Number 5310-01-468-4655, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-468-4655 |
| Primary Part Number | HS306-232H |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Overall Diameter | 0.855 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL CORROSION RESISTING OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.385 INCHES MINIMUM AND 0.401 INCHES MAXIMUM IN |
| Thickness | 0.062 INCHES MAXIMUM 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 |
|---|---|
| HS306-232H PRIMARY | The Boeing Company (USA) |
| HS306-232H | Avionics Specialties, Inc. (USA) |
| Reference | Meaning |
|---|---|
| HS306-232H | 5/2 Secondary reference U.S. Government activity |
| HS306-232H | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 5310-01-468-4655 is a Washer,flat, manufactured by The Boeing Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-468-4655 has 2 manufacturer part numbers on file: HS306-232H (The Boeing Company), HS306-232H (Avionics Specialties, Inc.).
Key specifications for HS306-232H: Overall Diameter: 0.855 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; End Item Identification: 1520011358250. 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.