The Nut,sleeve, cataloged under National Stock Number 5310-01-037-7903, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-037-7903 |
| Item Name | Nut,sleeve |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Nut Length | 0.230 INCHES NOMINAL IN |
| Thread Series | UNF |
| Nut Width Across Flats | 0.557 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Boss Thickness | 0.156 INCHES NOMINAL OVERALL IN |
| Cross-Sectional Shape | ROUND BOSS |
| Cross-Sectional Shape | HEXAGONAL NUT |
| Boss Diameter | 0.487 INCHES MINIMUM AND 0.517 INCHES MAXIMUM OVERALL IN |
| Nut Style | SLEEVE |
| Thread Class | 2B |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 65226 | 3/9 Design control — primary reference Davey Compressor Co Div of Keco Industries Inc |
| 65226 | 5/9 Secondary reference Drs Environmental Systems Inc |
| 65226 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-037-7903 is a Nut,sleeve, classified under FSC 5310, Nuts and Washers. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 2910-01-430-7332, 2910-01-568-8658. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-01-037-7903: Nut Length: 0.230 INCHES NOMINAL IN; Thread Series: UNF; Nut Width Across Flats: 0.557 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND. 13 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.