The Nut,sleeve, cataloged under National Stock Number 5310-01-241-7737, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Tactair Fluid Controls Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-241-7737 |
| Primary Part Number | 28-40079-7 |
| Item Name | Nut,sleeve |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Tactair Fluid Controls Inc |
| Status | ACTIVE |
| Flange Width Across Flats | 0.875 INCHES NOMINAL IN |
| Nut Length | 0.400 INCHES NOMINAL IN |
| Thread Series | UNEF |
| Material Document and Classification | AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.530 INCHES IN |
| Nut Diameter | 1.000 INCHES NOMINAL IN |
| Cross-Sectional Shape | ROUND W/WRENCH FLATS FLANGE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 630 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 |
|---|---|
| 28-40079-7 PRIMARY | Tactair Fluid Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| 28-40079-7 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5310-01-241-7737 is a Nut,sleeve, manufactured by Tactair Fluid Controls Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-241-7737 has 1 manufacturer part number on file: 28-40079-7 (Tactair Fluid Controls Inc).
Key specifications for 28-40079-7: Flange Width Across Flats: 0.875 INCHES NOMINAL IN; Nut Length: 0.400 INCHES NOMINAL IN; Thread Series: UNEF; Material Document and Classification: AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.