The Nut,self-Locking,clinch, cataloged under National Stock Number 5310-00-706-0304, 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 13 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-706-0304 |
| Primary Part Number | K19432-4 |
| Item Name | Nut,self-Locking,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Precious Material | SILVER |
| Material Document and Classification | AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Pilot Diameter | 0.3490 INCHES MINIMUM AND 0.3495 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.308 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Surface Treatment | SILVER OVERALL |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 601 OVERALL |
| 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 |
|---|---|
| K19432-4 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 56131-428-S37-P1 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| K19432-4 | Satair A/s (DNK) |
| 706B183P1 | Howmet Global Fastening Systems Inc (USA) |
| 706B183P1 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 706B183P1 | 5/9 Secondary reference General Electric Company |
| LHL3970-20-048 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-00-706-0304 is a Nut,self-Locking,clinch, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-706-0304 has 5 manufacturer part numbers on file: K19432-4 (Howmet Global Fastening Systems Inc), 56131-428-S37-P1 (Sps Technologies, Llc Dba PB Fasteners), K19432-4 (Satair A/s), 706B183P1 (Howmet Global Fastening Systems Inc), 706B183P1 (General Electric Company).
Key specifications for K19432-4: Surface Treatment Document and Classification: AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNF; Precious Material: SILVER; Material Document and Classification: AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 13 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.