The Nut,sleeve, cataloged under National Stock Number 5310-01-042-3440, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 18 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-042-3440 |
| Primary Part Number | 12007761 |
| Item Name | Nut,sleeve |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Flange Width Across Flats | 3.870 INCHES MINIMUM AND 3.880 INCHES MAXIMUM IN |
| Nut Length | 3.190 INCHES NOMINAL IN |
| Flange Thickness | 0.620 INCHES NOMINAL IN |
| Thread Series | ACME |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| Thread Pitch Diameters | +1.3000 TO 1.3762 INCHES IN |
| Nut Counterbore Depth | 0.620 INCHES NOMINAL FLANGE IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.375 INCHES IN |
| Nut Diameter | 1.744 INCHES MINIMUM AND 1.746 INCHES MAXIMUM IN |
| Counterbore Diameter | 1.410 INCHES MINIMUM AND 1.430 INCHES MAXIMUM NUT IN |
| Cross-Sectional Shape | ROUND FIRST END |
| Cross-Sectional Shape | HEXAGONAL FLANGE |
| Surface Treatment | OXIDE OVERALL |
| Countersink Angle | 45.0 DEGREES NOMINAL NUT |
| Nut Style | SLEEVE |
| Thread Quantity Per Inch | 12 |
| Material | STEEL COMP 4130 AND STEEL COMP 8630 OVERALL |
| 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 |
|---|---|
| 12007761 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 5310-01-042-3440 is a Nut,sleeve, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-042-3440 has 1 manufacturer part number on file: 12007761 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 12007761: Flange Width Across Flats: 3.870 INCHES MINIMUM AND 3.880 INCHES MAXIMUM IN; Nut Length: 3.190 INCHES NOMINAL IN; Flange Thickness: 0.620 INCHES NOMINAL IN; Thread Series: ACME. 18 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.