The Nut,plain,round, cataloged under National Stock Number 5310-00-757-5909, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-757-5909 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P,416,TYPE 2,CLASS 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TYPE 2,CLASS3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Series | UNS |
| Thread Pitch Diameters | +2.1209 TO 2.1260 INCHES IN |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Drive Point Width | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.156 INCHES IN |
| Nut Diameter | 2.953 INCHES MINIMUM AND 2.973 INCHES MAXIMUM IN |
| Drive Point Depth | 0.125 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 1 TYPE AND 1 CLASS |
| Nut Thickness | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OR CHROMATE ZINC OVERALL |
| Countersink Angle | 45.0 DEGREES MINIMUM AND 60.0 DEGREES MAXIMUM FIRST END |
| Countersink Angle | 45.0 DEGREES MINIMUM AND 60.0 DEGREES MAXIMUM SECOND END |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1524 OR STEEL COMP 1025 OR STEEL COMP 1026 OR STEEL COMP 1527 OR STEEL COMP 1029 OR STEEL COMP 1030 OR STEEL COMP 1035 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| M12488 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| MILN21337 | 4/1 Identification reference U.S. Government activity |
| MS19068 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| MS19068-112 | 2/2 Government specification standardization U.S. Government activity |
NSN 5310-00-757-5909 is a Nut,plain,round, classified under FSC 5310, Nuts and Washers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5310-01-466-4424. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-00-757-5909: Surface Treatment Document and Classification: QQ-P,416,TYPE 2,CLASS 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TYPE 2,CLASS3 FED SPEC 2ND TREATMENT RESPONSE OVERALL; Thread Series: UNS; Thread Pitch Diameters: +2.1209 TO 2.1260 INCHES IN; Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL. 18 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.