The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-350-4322, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lawrence Co the. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-350-4322 |
| Primary Part Number | 01855 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Lawrence Co the |
| Status | ACTIVE |
| Width Across Flats | 1.000 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Hardness Rating | 90.7 ROCKWELL B MINIMUM AND 98.5 ROCKWELL B MAXIMUM |
| Material Document and Classification | QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.625 INCHES IN |
| Nut Height | 0.375 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 11 |
| Material | STEEL COMP 1035 OVERALL |
| Bearing Surface Type | WASHER FACED |
| 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 |
|---|---|
| 1ES16322 | Meritor Heavy Vehicle Systems, Llc (USA) |
| 1ES16322 | Meritor Industrial Products, Llc (USA) |
| 01855 PRIMARY | Lawrence Co the (USA) |
| Reference | Meaning |
|---|---|
| 5310003504322 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 5310-00-350-4322 is a Nut,plain,hexagon, manufactured by Lawrence Co the, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-350-4322 has 3 manufacturer part numbers on file: 1ES16322 (Meritor Heavy Vehicle Systems, Llc), 1ES16322 (Meritor Industrial Products, Llc), 01855 (Lawrence Co the).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-211-6385. Verify interchangeability with system specifications before substitution.
Key specifications for 01855: Width Across Flats: 1.000 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Hardness Rating: 90.7 ROCKWELL B MINIMUM AND 98.5 ROCKWELL B MAXIMUM; Material Document and Classification: QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 12 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.