The Nut,self-Locking,barrel, cataloged under National Stock Number 5310-01-048-1643, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-01-048-1643 |
| Primary Part Number | SLN170-4 |
| Item Name | Nut,self-Locking,barrel |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok |
| Status | CANCELLED |
| Thread Direction | RIGHT-HAND |
| Nut Diameter | 0.498 INCHES MINIMUM AND 0.528 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.250 INCHES IN |
| Lubrication | DRY FILM LUBRICANT |
| Nut Style | FLOATING SELF-LOCKING BARREL |
| Nut Length | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Nut Height | 0.437 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 28 |
| Barrel Height | 0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Material Document and Classification | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5663 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Class | 3B |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 10122047 | Nimikkeistokeskus Ncb Finland (FIN) |
| ST3M441-4M | The Boeing Company Div Defense (USA) |
| SLN170-4 PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| 3929AS1223-4M | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| SL4010-4 PRIMARY | Sps Technologies Llc Dba Shur-Lok Company Div Aerospace Engineered Products Division (USA) |
| K50188-4 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 77020-4 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BFN441-4 PRIMARY | Bristol Industries, Llc (USA) |
| B10695-4 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 642AS0728-2 | Zf Industrieantriebe Witten Gmbh (DEU) |
| B10695-4 | Harvard Industries Inc (USA) |
NSN 5310-01-048-1643 is a Nut,self-Locking,barrel, manufactured by Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok, classified under FSC 5310 (No Item Name Available). Status: cancelled.
NSN 5310-01-048-1643 has 11 cross-referenced part numbers: 10122047 (Nimikkeistokeskus Ncb Finland), ST3M441-4M (The Boeing Company Div Defense), SLN170-4 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), 3929AS1223-4M (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), SL4010-4 (Sps Technologies Llc Dba Shur-Lok Company Div Aerospace Engineered Products Division) and 6 more.
There are 3 known substitutes for 5310-01-048-1643: 4730-01-016-8897, 1560-01-111-1805, 1390-01-247-4013. Verify interchangeability with system specifications before substitution.
Key specifications for SLN170-4: Thread Direction: RIGHT-HAND; Nut Diameter: 0.498 INCHES MINIMUM AND 0.528 INCHES MAXIMUM IN; Nominal Thread Size: 0.250 INCHES IN; Lubrication: DRY FILM LUBRICANT. 13 total characteristics are documented in the Federal Logistics Information System.
NSN 5310-01-048-1643 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.