The Nut,insert-Locking, cataloged under National Stock Number 5310-01-267-3267, 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 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-267-3267 |
| Primary Part Number | K51732-8 |
| Item Name | Nut,insert-Locking |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| General Characteristics Item Description | 0.615 IN. MIN,0.625 IN. MAX OD,0.400 IN. MIN,0.430 IN. MAX H,EXCLUDING LOCKING KEYS; 0.300-20UNJF-3B INTERNAL THDS,0.6875-11ONS-2A EXTERNAL THDS A |
| 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 |
|---|---|
| K51732-8 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 4072T58P01 | Howmet Global Fastening Systems Inc. Div Microdot Products (USA) |
| Reference | Meaning |
|---|---|
| 4072T58P01 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5310-01-267-3267 is a Nut,insert-Locking, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-267-3267 has 2 manufacturer part numbers on file: K51732-8 (Howmet Global Fastening Systems Inc), 4072T58P01 (Howmet Global Fastening Systems Inc. Div Microdot Products).
Key specifications for K51732-8: General Characteristics Item Description: 0.615 IN. MIN,0.625 IN. MAX OD,0.400 IN. MIN,0.430 IN. MAX H,EXCLUDING LOCKING KEYS; 0.300-20UNJF-3B INTERNAL THDS,0.6875-11ONS-2A EXTERNAL THDS A; End Item Identification: ENGINE MODEL F-404. 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.