The Bolt,machine, cataloged under National Stock Number 5306-00-040-9809, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Quality Gear Mfg. Co. Inc.. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5306-00-040-9809 |
| Primary Part Number | 423338-1 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Quality Gear Mfg. Co. Inc. |
| Status | ACTIVE |
| Head Height | 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Thread Length | 0.514 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Locking Feature | PELLET THREADS |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 423338-1 | Quality Gear Mfg. Co. Inc. (USA) |
| NM140CR518N10E | Nylok Llc (USA) |
| Reference | Meaning |
|---|---|
| 5306PL1337063 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 609024-4 | 5/2 Secondary reference U.S. Government activity |
| M4CR518-10E | 5/9 Secondary reference Nylok Llc |
| 423338-1 | 3/2 Design control — primary reference U.S. Government activity |
| 616478-3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-040-9809 is a Bolt,machine, manufactured by Quality Gear Mfg. Co. Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-040-9809 has 2 manufacturer part numbers on file: 423338-1 (Quality Gear Mfg. Co. Inc.), NM140CR518N10E (Nylok Llc).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-700-1091. Verify interchangeability with system specifications before substitution.
Key specifications for 423338-1: Head Height: 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN; Fastener Length: 0.625 INCHES NOMINAL IN; Thread Length: 0.514 INCHES NOMINAL IN; Nominal Thread Diameter: 0.312 INCHES 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.