The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-729-1967, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Precision Aircraft Machining Company, Inc. Dba Pamco Div Precision Aircraft Machining Co Dba Pamco. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-729-1967 |
| Primary Part Number | PS178J16L |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Precision Aircraft Machining Company, Inc. Dba Pamco Div Precision Aircraft Machining Co Dba Pamco |
| Status | ACTIVE |
| Width Across Flats | 1.613 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT (UNJ) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.3125 INCHES IN |
| Nut Height | 0.406 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 12.0 |
| 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 |
|---|---|
| PS178J16L PRIMARY | Precision Aircraft Machining Company, Inc. Dba Pamco Div Precision Aircraft Machining Co Dba Pamco (USA) |
NSN 5310-01-729-1967 is a Nut,plain,hexagon, manufactured by Precision Aircraft Machining Company, Inc. Dba Pamco Div Precision Aircraft Machining Co Dba Pamco, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-729-1967 has 1 manufacturer part number on file: PS178J16L (Precision Aircraft Machining Company, Inc. Dba Pamco Div Precision Aircraft Machining Co Dba Pamco).
Key specifications for PS178J16L: Width Across Flats: 1.613 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL JOINT (UNJ); Thread Direction: RIGHT-HAND; Nominal Thread Size: 1.3125 INCHES IN. 9 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.