The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-220-6772, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 11 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-220-6772 |
| Primary Part Number | 53-270 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Dresser Industries Inc Leroi Div |
| Status | ACTIVE |
| Width Across Flats | 1.062 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.625 INCHES IN |
| Nut Height | 0.609 INCHES NOMINAL IN |
| Countersink Angle | 120.0 DEGREES NOMINAL NUT |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 11 |
| Material | STEEL 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 |
|---|---|
| 53-270 PRIMARY | Dresser Industries Inc Leroi Div (USA) |
NSN 5310-00-220-6772 is a Nut,plain,hexagon, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-220-6772 has 1 manufacturer part number on file: 53-270 (Dresser Industries Inc Leroi Div).
3 possible matches (shared part number, not a government interchangeability claim): 5998-00-349-1946, 4820-00-516-1109, 5998-01-520-3981. Verify interchangeability with system specifications before substitution.
Key specifications for 53-270: Width Across Flats: 1.062 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.625 INCHES IN. 11 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.