The Nut,self-Locking,clinch, cataloged under National Stock Number 5310-00-373-3035, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 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 | 5310-00-373-3035 |
| Primary Part Number | 4021907 |
| Item Name | Nut,self-Locking,clinch |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | CANCELLED |
| Material | STEEL OVERALL |
| Surface Treatment | SILVER OVERALL |
| Material Document and Classification | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.105 INCHES MINIMUM AND 0.111 INCHES MAXIMUM NUT IN |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM |
| Thread Quantity Per Inch | 28 |
| Counterbore Diameter | 0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM NUT IN |
| Nominal Thread Size | 0.250 INCHES IN |
| Surface Treatment Document and Classification | AMS 2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3B |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4021866 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4021866 | Rtx Corporation Div Pratt & Whitney (USA) |
| 4818DF048-1 | Howmet Global Fastening Systems Inc Div Torrance Operations (USA) |
| 4021907 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 4021905 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 4023391 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4021907 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| K49502-4 | Watson Industries Inc (USA) |
| L11174-7-4 | Harvard Industries Inc (USA) |
NSN 5310-00-373-3035 is a Nut,self-Locking,clinch, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.
NSN 5310-00-373-3035 has 9 cross-referenced part numbers: 4021866 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4021866 (Rtx Corporation Div Pratt & Whitney), 4818DF048-1 (Howmet Global Fastening Systems Inc Div Torrance Operations), 4021907 (Howmet Global Fastening Systems Inc), 4021905 (Sps Technologies, Llc Dba PB Fasteners) and 4 more.
There are 3 known substitutes for 5310-00-373-3035: 5310-00-124-5289, 5310-00-505-9586, 5340-00-518-1256. Verify interchangeability with system specifications before substitution.
Key specifications for 4021907: Material: STEEL OVERALL; Surface Treatment: SILVER OVERALL; Material Document and Classification: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Nut Counterbore Depth: 0.105 INCHES MINIMUM AND 0.111 INCHES MAXIMUM NUT IN. 14 total characteristics are documented in the Federal Logistics Information System.
NSN 5310-00-373-3035 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.