The Nut,sleeve, cataloged under National Stock Number 5310-01-626-8992, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-626-8992 |
| Primary Part Number | ST3M671-7 |
| Item Name | Nut,sleeve |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Nut Length | 0.352 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Flange Thickness | 0.095 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Material Document and Classification | AMS5662 FED STD SINGLE MATERIAL RESPONSE OR AMS5663 FED STD SINGLE MATERIAL RESPONSE OR AMS5664 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Flange Length | 0.790 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.4375 INCHES IN |
| Counterbore Diameter | 0.480 INCHES NOMINAL FLANGE IN |
| Cross-Sectional Shape | SQUARE FLANGE |
| Cross-Sectional Shape | ROUND OVERALL |
| Surface Treatment | PASSIVATE OVERALL |
| Flange Width | 0.790 INCHES NOMINAL IN |
| Nut Style | SLEEVE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | NICKEL ALLOY 718 OVERALL |
| Smallest Diameter | 0.4375 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5310-01-626-8992 is a Nut,sleeve, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-626-8992 has 2 manufacturer part numbers on file: CN49969-7 (Howmet Global Fastening Systems Inc), ST3M671-7 (The Boeing Company Div Defense).
Key specifications for ST3M671-7: Lubrication: DRY FILM LUBRICANT; Nut Length: 0.352 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Flange Thickness: 0.095 INCHES NOMINAL IN. 19 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.