The Bolt,machine, cataloged under National Stock Number 5306-01-069-0488, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Meggitt Aircraft Braking Systems Corporation. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-069-0488 |
| Primary Part Number | GYS187-80 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Meggitt Aircraft Braking Systems Corporation |
| Status | ACTIVE |
| Head Height | 0.257 INCHES NOMINAL IN |
| Fastener Length | 5.812 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | PARKERIZE,FSCM 45738 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.812 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 5.000 INCHES NOMINAL IN |
| Width Between Flats | 0.678 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| GYS187-80 PRIMARY | Meggitt Aircraft Braking Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| GYS187-80 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems |
| GYS187-80 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5306-01-069-0488 is a Bolt,machine, manufactured by Meggitt Aircraft Braking Systems Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-069-0488 has 1 manufacturer part number on file: GYS187-80 (Meggitt Aircraft Braking Systems Corporation).
Key specifications for GYS187-80: Head Height: 0.257 INCHES NOMINAL IN; Fastener Length: 5.812 INCHES NOMINAL IN; Surface Treatment Document and Classification: PARKERIZE,FSCM 45738 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.812 INCHES NOMINAL 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.