The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-037-2773, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 12 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-037-2773 |
| Primary Part Number | 1.37508UNC2BT3G4NSAFAL1 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Width Across Flats | 2.029 INCHES NOMINAL IN |
| Thread Series | UN |
| Criticality Code Justification | ZZZX |
| Material Document and Classification | MIL-S-1222,TYPE 2,SYMBOL 4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.375 INCHES IN |
| Departure From Cited Designator | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS |
| Nut Height | 1.203 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 8 |
| 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 | S |
| Part Number | Manufacturer |
|---|---|
| 1.37508UNC2BT3G4NSAFAL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| MS16286-13L1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| MILS1222TY3STYAGR41 3/8-8UN-2BS1 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| MIL-DTL-1222 | 4/1 Identification reference U.S. Government activity |
| MS16286-13 | 4/1 Identification reference U.S. Government activity |
| 1.37508UNC2BT3G4NSAFA | 5/1 Secondary reference U.S. Government activity |
| MILS1222TY3STYAGR4 1 3/8-8UN-2B | 5/1 Secondary reference U.S. Government activity |
NSN 5310-01-037-2773 is a Nut,plain,hexagon, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-037-2773 has 1 manufacturer part number on file: 1.37508UNC2BT3G4NSAFAL1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 1.37508UNC2BT3G4NSAFAL1: Width Across Flats: 2.029 INCHES NOMINAL IN; Thread Series: UN; Criticality Code Justification: ZZZX; Material Document and Classification: MIL-S-1222,TYPE 2,SYMBOL 4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 12 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.