The Nut,self-Locking, cataloged under National Stock Number 5310-01-065-0042, 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 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-065-0042 |
| Primary Part Number | KFN536-4 |
| Item Name | Nut,self-Locking |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,CADMIUM QQ-P-416 TYPE 2 CLASS 3,0.250 UNJF-3B THREAD,0.461 IN. MAX DIA,0.335 IN. MAX HEIGHT,PREVAILING TORQUE ALL METAL LOCKING FEATURE,DRY FILM LUBRICATED,SELF-SEALING,ROCKWELL C SCALE 39 MIN 43 MAX HARDNESS RATING,SPLINE TYPE WRENCHING FEATURE,0.254 IN. MIN 0.268 IN. MAX COUNTERBORE DIA,0.107 IN. MIN,0.117 IN. MAX COUNTERBORE DEPTH IN |
| 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 |
|---|---|
| KFN536-4 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| KFN536-4 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Microdot Products |
NSN 5310-01-065-0042 is a Nut,self-Locking, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-065-0042 has 1 manufacturer part number on file: KFN536-4 (Howmet Global Fastening Systems Inc).
Key specifications for KFN536-4: General Characteristics Item Description: STEEL,CADMIUM QQ-P-416 TYPE 2 CLASS 3,0.250 UNJF-3B THREAD,0.461 IN. MAX DIA,0.335 IN. MAX HEIGHT,PREVAILING TORQUE ALL METAL LOCKING FEATURE,DRY FILM LUBRICATED,SELF-SEALING,ROCKWELL C SCALE 39 MIN 43 MAX HARDNESS RATING,SPLINE TYPE WRENCHING FEATURE,0.254 IN. MIN 0.268 IN. MAX COUNTERBORE DIA,0.107 IN. MIN,0.117 IN. MAX COUNTERBORE DEPTH IN. 1 specification is 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.