The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-409-3692, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Crosby Group Inc the Mckissick Plant Div. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-409-3692 |
| Primary Part Number | SE2020-7A |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Crosby Group Inc the Mckissick Plant Div |
| Status | ACTIVE |
| Width Across Flats | 1.250 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.375 INCHES NOMINAL NUT IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.750 INCHES IN |
| Counterbore Diameter | 0.812 INCHES NOMINAL NUT IN |
| Nut Height | 0.750 INCHES NOMINAL IN |
| Countersink Angle | 41.0 DEGREES NOMINAL NUT |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 10 |
| Material | STEEL COMP 1040 OVERALL |
| Bearing Surface Type | FLAT |
| 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 |
|---|---|
| SE2020-7A PRIMARY | Crosby Group Inc the Mckissick Plant Div (USA) |
| Reference | Meaning |
|---|---|
| 10159170 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
NSN 5310-00-409-3692 is a Nut,plain,hexagon, manufactured by Crosby Group Inc the Mckissick Plant Div, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-409-3692 has 1 manufacturer part number on file: SE2020-7A (Crosby Group Inc the Mckissick Plant Div).
1 possible match (shared part number, not a government interchangeability claim): 2925-01-341-7423. Verify interchangeability with system specifications before substitution.
Key specifications for SE2020-7A: Width Across Flats: 1.250 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nut Counterbore Depth: 0.375 INCHES NOMINAL NUT IN. 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.