The Nut,sleeve, cataloged under National Stock Number 5310-01-087-0303, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is G M J Machine Co, Inc Div G.m.j. Machine Company, Inc.. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-087-0303 |
| Primary Part Number | 3F31992-101 |
| Item Name | Nut,sleeve |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | G M J Machine Co, Inc Div G.m.j. Machine Company, Inc. |
| Status | ACTIVE |
| Flange Width Across Flats | 0.625 INCHES NOMINAL IN |
| Nut Length | 0.620 INCHES NOMINAL IN |
| Flange Thickness | 0.060 INCHES NOMINAL IN |
| Thread Series | UNF |
| Material Document and Classification | MIL-S-6758,COND F4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Nut Diameter | 0.303 INCHES MINIMUM AND 0.309 INCHES MAXIMUM IN |
| Cross-Sectional Shape | HEXAGONAL FLANGE |
| Cross-Sectional Shape | ROUND NUT |
| Nut Style | SLEEVE |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 4130 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 |
|---|---|
| 3F31992-101 PRIMARY | G M J Machine Co, Inc Div G.m.j. Machine Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3F31992-101 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-087-0303 is a Nut,sleeve, manufactured by G M J Machine Co, Inc Div G.m.j. Machine Company, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-087-0303 has 1 manufacturer part number on file: 3F31992-101 (G M J Machine Co, Inc Div G.m.j. Machine Company, Inc.).
Key specifications for 3F31992-101: Flange Width Across Flats: 0.625 INCHES NOMINAL IN; Nut Length: 0.620 INCHES NOMINAL IN; Flange Thickness: 0.060 INCHES NOMINAL IN; Thread Series: UNF. 14 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.