The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-552-2148, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Anvil International, Inc. Dba Beck Manufacturing Div Beck Manufacturing. Government technical data includes 2 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-552-2148 |
| Primary Part Number | 0318913720 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Anvil International, Inc. Dba Beck Manufacturing Div Beck Manufacturing |
| Status | ACTIVE |
| Thread Series | NPSL |
| Material | STEEL 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 |
|---|---|
| 370 LOCKNUT 2.500 IN. | Anvil International, Inc. Dba Beck Manufacturing Div Beck Manufacturing (USA) |
| 0318913720 PRIMARY | Anvil International, Inc. Dba Beck Manufacturing Div Beck Manufacturing (USA) |
NSN 5310-01-552-2148 is a Nut,self-Locking,hexagon, manufactured by Anvil International, Inc. Dba Beck Manufacturing Div Beck Manufacturing, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-552-2148 has 2 manufacturer part numbers on file: 370 LOCKNUT 2.500 IN. (Anvil International, Inc. Dba Beck Manufacturing Div Beck Manufacturing), 0318913720 (Anvil International, Inc. Dba Beck Manufacturing Div Beck Manufacturing).
Key specifications for 0318913720: Thread Series: NPSL; Special Features: SIZE 2.500 INCH IN; Part Name Assigned by Controlling Agency: LOCKNUT; Material: STEEL OVERALL. 2 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.