The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-402-5220, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-402-5220 |
| Primary Part Number | 11649930 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Lubrication | SOLUBLE LUBRICANT |
| Width Across Flats | 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-P-16232,TY Z,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Nondefinitive Spec/std Data | B GRADE |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.427 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Surface Treatment | PHOSPHATE ZINC OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Bearing Surface Type | CHAMFERED OR WASHER FACED |
| 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 |
|---|---|
| 11649930 | Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA) |
| 11649930 | Amz Alabama Inc. (USA) |
| 11649930 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 62.21.012 | 5/9 Secondary reference Sapa Operaciones SL |
| 5310004025220 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| FFN836 | 4/1 Identification reference U.S. Government activity |
NSN 5310-00-402-5220 is a Nut,self-Locking,hexagon, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-402-5220 has 3 manufacturer part numbers on file: 11649930 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc), 11649930 (Amz Alabama Inc.), 11649930 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 11649930: Lubrication: SOLUBLE LUBRICANT; Width Across Flats: 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-P-16232,TY Z,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNF. 15 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.