The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-663-7685, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fluid Handling Llc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Fluid Handling Llc (CAGE 6LE50) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-663-7685 |
| Primary Part Number | 2-122-1-08-005-02 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fluid Handling Llc |
| 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 |
|---|---|
| 2-122-1-08-005-02 PRIMARY | Fluid Handling Llc (USA) |
| Reference | Meaning |
|---|---|
| 5-131-08-027-001 | D/9 Drawing number reference only Fluid Handling Llc |
| 5-131-08-027-001 PC 7 | 3/1 Design control — primary reference Fluid Handling Llc |
NSN 5310-01-663-7685 is a Nut,plain,hexagon, manufactured by Fluid Handling Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-663-7685 has 1 manufacturer part number on file: 2-122-1-08-005-02 (Fluid Handling Llc).
1 possible match (shared part number, not a government interchangeability claim): 5307-01-663-7952. 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.