The Bolt,square Neck, cataloged under National Stock Number 5306-01-121-6586, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-121-6586 |
| Primary Part Number | 48683 |
| Item Name | Bolt,square Neck |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Neck Length | 0.078 INCHES NOMINAL IN |
| Head Height | 0.200 INCHES NOMINAL IN |
| Fastener Length | 1.072 INCHES NOMINAL IN |
| Thread Length | 0.600 INCHES NOMINAL IN |
| Material Document and Classification | 5643,TYPE 17-4PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Neck Width | 0.202 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.380 INCHES NOMINAL IN |
| 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 |
|---|---|
| 48683 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| B048683 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
NSN 5306-01-121-6586 is a Bolt,square Neck, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-121-6586 has 1 manufacturer part number on file: 48683 (L3 Technologies, Inc. Div L3 Keo).
Key specifications for 48683: Neck Length: 0.078 INCHES NOMINAL IN; Head Height: 0.200 INCHES NOMINAL IN; Fastener Length: 1.072 INCHES NOMINAL IN; Thread Length: 0.600 INCHES NOMINAL IN. 13 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.