The Bolt,machine, cataloged under National Stock Number 5306-01-640-7052, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Metrex Valve Corp. Dba Metrex Valve Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Bolt,machine |
| FSC / FSG | 5306 — Bolts (FSG 53) |
| Manufacturers | Metrex Valve Corp. Dba Metrex Valve Corp (CAGE 21013) |
| Parameter | Value |
|---|---|
| NSN | 5306-01-640-7052 |
| Primary Part Number | 1K2-71S |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Metrex Valve Corp. Dba Metrex Valve Corp |
| Status | ACTIVE |
| 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 |
|---|---|
| EAM1016NF2-3W ITEM 30 | Metrex Valve Corp. Dba Metrex Valve Corp (USA) |
| 1K2-71S PRIMARY | Metrex Valve Corp. Dba Metrex Valve Corp (USA) |
| Reference | Meaning |
|---|---|
| EAM1016NF2-3W | D/9 Drawing number reference only Metrex Valve Corp. Dba Metrex Valve Corp |
NSN 5306-01-640-7052 is a Bolt,machine, manufactured by Metrex Valve Corp. Dba Metrex Valve Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-640-7052 has 2 manufacturer part numbers on file: EAM1016NF2-3W ITEM 30 (Metrex Valve Corp. Dba Metrex Valve Corp), 1K2-71S (Metrex Valve Corp. Dba Metrex Valve Corp).
3 possible matches (shared part number, not a government interchangeability claim): 5360-01-640-8770, 5307-01-643-6915, 4820-01-660-1461. Verify interchangeability with system specifications before substitution.
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.