The Nut,sleeve, cataloged under National Stock Number 5310-01-442-3603, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-442-3603 |
| Primary Part Number | 6405750 FIND AHWA-4 |
| Item Name | Nut,sleeve |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Nut Length | 0.200 INCHES NOMINAL IN |
| Flange Thickness | 1.120 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.875 INCHES IN |
| Nut Diameter | 3.250 INCHES NOMINAL IN |
| Thread Class | 2B |
| Thread Quantity Per Inch | 12 |
| Material | NICKEL ALLOY 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 |
|---|---|
| 6405750 FIND AHWA-4 PRIMARY | Naval Sea Systems Command (USA) |
| 6111403-4 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 581-6405750 AHWA FIND 4 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5310-01-442-3603 is a Nut,sleeve, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-442-3603 has 2 manufacturer part numbers on file: 6405750 FIND AHWA-4 (Naval Sea Systems Command), 6111403-4 (Naval Sea Systems Command).
Key specifications for 6405750 FIND AHWA-4: Nut Length: 0.200 INCHES NOMINAL IN; Flange Thickness: 1.120 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND. 9 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.