The Washer,flat, cataloged under National Stock Number 5310-01-504-6159, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fontaine Commercial Trailer, Inc. Dba Mht Floor Technologies (3dgr3). Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-504-6159 |
| Primary Part Number | 55752003 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fontaine Commercial Trailer, Inc. Dba Mht Floor Technologies (3dgr3) |
| Status | ACTIVE |
| Peripheral Shape Style | ROUND |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.250 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 |
|---|---|
| 55752003 PRIMARY | Fontaine Commercial Trailer, Inc. Dba Mht Floor Technologies (3dgr3) (USA) |
| Reference | Meaning |
|---|---|
| 55752003 | 3/9 Design control — primary reference Fontaine Fifth Wheel Company |
NSN 5310-01-504-6159 is a Washer,flat, manufactured by Fontaine Commercial Trailer, Inc. Dba Mht Floor Technologies (3dgr3), classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-504-6159 has 1 manufacturer part number on file: 55752003 (Fontaine Commercial Trailer, Inc. Dba Mht Floor Technologies (3dgr3)).
Key specifications for 55752003: Peripheral Shape Style: ROUND; End Item Identification: M871A322.5 TON SEMI-TRAILER SYSTEM; Center Hole Shape Style: ROUND; Hole Diameter: 0.250 INCHES NOMINAL IN. 3 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.