The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-522-2860, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 6 specifications, 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-522-2860 |
| Primary Part Number | 164-37 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.625 INCHES IN |
| Nut Style | HEXAGON |
| Thread Quantity Per Inch | 11 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Bearing Surface Type | FLAT |
| 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 |
|---|---|
| 164-37 PRIMARY | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
| 40750-4 FIND NO 21 | Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA) |
NSN 5310-01-522-2860 is a Nut,plain,hexagon, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-522-2860 has 2 manufacturer part numbers on file: 164-37 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40750-4 FIND NO 21 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-591-4832. Verify interchangeability with system specifications before substitution.
Key specifications for 164-37: Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.625 INCHES IN; Nut Style: HEXAGON; End Item Identification: VALVE, PRESSURE-REDUCING. 6 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.