The Nut, cataloged under National Stock Number 5310-01-239-0577, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Frederick Custom Machining Inc. 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.
| Item Name | Nut |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Frederick Custom Machining Inc (CAGE 23515) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-239-0577 |
| Primary Part Number | 46CF |
| Item Name | Nut |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Frederick Custom Machining Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 26926D PIECE 46 | Frederick Custom Machining Inc (USA) |
| 46CF PRIMARY | Frederick Custom Machining Inc (USA) |
NSN 5310-01-239-0577 is a Nut, manufactured by Frederick Custom Machining Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-239-0577 has 2 manufacturer part numbers on file: 26926D PIECE 46 (Frederick Custom Machining Inc), 46CF (Frederick Custom Machining Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-282-3266. 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.