The Nut,plain,cap, cataloged under National Stock Number 5310-01-506-3315, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Grainger Br 507. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-506-3315 |
| Primary Part Number | 1784-001-00 |
| Item Name | Nut,plain,cap |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Grainger Br 507 |
| Status | ACTIVE |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.438 INCHES IN |
| Thread Quantity Per Inch | 20 |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 1784-001-00 PRIMARY | Grainger Br 507 (USA) |
| 1491257 | Connectronics Corp (USA) |
| Reference | Meaning |
|---|---|
| 03-0246 | 5/1 Secondary reference U.S. Government activity |
NSN 5310-01-506-3315 is a Nut,plain,cap, manufactured by Grainger Br 507, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-506-3315 has 2 manufacturer part numbers on file: 1784-001-00 (Grainger Br 507), 1491257 (Connectronics Corp).
2 possible matches (shared part number, not a government interchangeability claim): 5310-01-561-7892, 5310-01-619-1157. Verify interchangeability with system specifications before substitution.
Key specifications for 1784-001-00: Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.438 INCHES IN; Special Features: REPAIR PART FOR CENTRIFUGAL PUMP 4XZ16 NSN 4320-01-506-2047; STAINLESS STEEL; 7/16-20; ALSO CALLED ACORN NUT; Part Name Assigned by Controlling Agency: STAINLESS STEEL ACORN NUT 7/16-20 FOR CENTRIFUGAL PUMP. 4 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.