The Nut,self-Locking,barrel, cataloged under National Stock Number 5310-01-352-5840, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 25 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-352-5840 |
| Primary Part Number | F53183-6 |
| Item Name | Nut,self-Locking,barrel |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Nut Length | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SHELL |
| Surface Treatment Document and Classification | AMS 2411 ASSN STD SINGLE TREATMENT RESPONSE NUT |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRING |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Precious Material | SILVER |
| Material Document and Classification | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Material Document and Classification | AISI 420 ASSN STD SINGLE MATERIAL RESPONSE CLIP |
| Material Document and Classification | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE SHELL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Nut Diameter | 0.644 INCHES NOMINAL IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.531 INCHES MAXIMUM IN |
| Surface Treatment | SILVER NUT |
| Surface Treatment | PASSIVATE SPRING |
| Surface Treatment | PASSIVATE SHELL |
| Precious Material and Location | ALL SURFACES SILVER |
| Nut Style | FLOATING SELF-LOCKING BARREL |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | IRON ALLOY 660 SHELL |
| Material | STEEL CLIP |
| Material | NICKEL ALLOY 718 NUT |
| Barrel Height | 0.410 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| F53183-6 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| SLN140-6 PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| 80998-0624 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 3D0011-6 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-352-5840 is a Nut,self-Locking,barrel, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-352-5840 has 3 manufacturer part numbers on file: F53183-6 (Howmet Global Fastening Systems Inc), SLN140-6 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), 80998-0624 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for F53183-6: Nut Length: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SHELL; Surface Treatment Document and Classification: AMS 2411 ASSN STD SINGLE TREATMENT RESPONSE NUT; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRING. 25 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.