The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-669-6509, 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 17 specifications, cited from the U.S. Government catalog. The record lists 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-669-6509 |
| Primary Part Number | 3M1296-6 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Width Across Flats | 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS2700, METHOD 1 OR 2 NATIONAL STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Hole Configuration Style | CONFIGURATION B |
| Material Document and Classification | AMS5525, AMS5732, AMS5735, OR AMS5737 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.3750 INCHES IN |
| Specification/standard Data | 76301-3-1296 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nut Height | 0.210 INCHES MINIMUM AND 0.227 INCHES MAXIMUM IN |
| Drilled Hole Diameter | 0.045 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 16 |
| Material | IRON ALLOY 660 OVERALL |
| Bearing Surface Type | WASHER FACED |
| Hole Type and Quantity | 3 DRILLED |
| 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 |
|---|---|
| 3M1296-6 | Monadnock Company, the Dba Lisi Aerospace (USA) |
| 3M1296-6 | Howmet Global Fastening Systems Inc (USA) |
| 3M1296-6 | Hi-Shear Corporation (USA) |
| 3M1296-6 | Alcoa Global Fasteners, Inc Dba Simmonds Mecaero Fas Pdts Div Simmonds Mecaero Fas Pdts (USA) |
| 3M1296-6 | Bristol Industries, Llc (USA) |
| 3M1296-6 PRIMARY | The Boeing Company Div Defense (USA) |
| 3M1296-6 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 3M1296-6 | Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| 3M1296-6 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-669-6509 is a Nut,plain,hexagon, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-669-6509 has 8 manufacturer part numbers on file: 3M1296-6 (Monadnock Company, the Dba Lisi Aerospace), 3M1296-6 (Howmet Global Fastening Systems Inc), 3M1296-6 (Hi-Shear Corporation), 3M1296-6 (Alcoa Global Fasteners, Inc Dba Simmonds Mecaero Fas Pdts Div Simmonds Mecaero Fas Pdts), 3M1296-6 (Bristol Industries, Llc) and 3 more.
Key specifications for 3M1296-6: Width Across Flats: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS2700, METHOD 1 OR 2 NATIONAL STD SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL COARSE (UNC); Hole Configuration Style: CONFIGURATION B. 17 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.