The Nut,plain,castellated,hexagon, cataloged under National Stock Number 5310-00-188-8918, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Liebherr-Aerospace Lindenberg Gmbh. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-188-8918 |
| Primary Part Number | 12Z3039-6 |
| Item Name | Nut,plain,castellated,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Liebherr-Aerospace Lindenberg Gmbh |
| Status | ACTIVE |
| Width Across Flats | 0.562 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Nut Height | 0.406 INCHES NOMINAL IN |
| Nut Style | CASTELLATED, HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL OVERALL |
| Bearing Surface Type | WASHER FACED |
| 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 |
|---|---|
| 12Z3039-6 | Liebherr-Aerospace Lindenberg Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| 12Z3039-6 | 5/9 Secondary reference Feinmechanische Werke Mainz Gmbh |
| 600 | 4/1 Identification reference U.S. Government activity |
NSN 5310-00-188-8918 is a Nut,plain,castellated,hexagon, manufactured by Liebherr-Aerospace Lindenberg Gmbh, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-188-8918 has 1 manufacturer part number on file: 12Z3039-6 (Liebherr-Aerospace Lindenberg Gmbh).
2 possible matches (shared part number, not a government interchangeability claim): 5310-00-262-3528, 5310-00-596-7667. Verify interchangeability with system specifications before substitution.
Key specifications for 12Z3039-6: Width Across Flats: 0.562 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.375 INCHES IN. 10 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.