The Nut,self-Locking,double Hexagon, cataloged under National Stock Number 5310-01-140-4555, 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. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-140-4555 |
| Primary Part Number | 12308644-1 |
| Item Name | Nut,self-Locking,double Hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| 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 |
|---|---|
| 12308644-1 | Goriziane Group Spa (ITA) |
| 12308644-1 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 2126 4591-123 | Bae Systems Hagglunds Aktiebolag (SWE) |
| Reference | Meaning |
|---|---|
| 2126 4591-123 | 5/9 Secondary reference Bae Systems Hagglunds Ab |
| 12308644 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
| 10088088 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5310-01-140-4555 is a Nut,self-Locking,double Hexagon, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-140-4555 has 3 manufacturer part numbers on file: 12308644-1 (Goriziane Group Spa), 12308644-1 (U S Army Tank Automotive Command Amsta-Im-Mm), 2126 4591-123 (Bae Systems Hagglunds Aktiebolag).
Key specifications for 12308644-1: End Item Identification: MULTIPLE LAUNCH ROCKET SYSTEM (MLRS). 0 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.