The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-481-2159, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 23 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-481-2159 |
| Primary Part Number | 4043189 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Extended Washer Thickness | 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Head Height | 0.480 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Fastener Length | 1.705 INCHES MINIMUM AND 1.725 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.766 INCHES NOMINAL IN |
| Thread Length | 0.470 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Criticality Code Justification | AGAV |
| Material Document and Classification | AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.457 INCHES MINIMUM AND 0.458 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.770 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 1.215 INCHES MINIMUM AND 1.235 INCHES MAXIMUM IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.442 INCHES MINIMUM AND 0.446 INCHES MAXIMUM IN |
| Width Between Flats | 0.562 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.500 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 3 |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | TITANIUM ALLOY OVERALL |
| Third Diameter From Head | 0.356 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
NSN 5306-00-481-2159 is a Bolt,externally Relieved Body, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-481-2159 has 2 manufacturer part numbers on file: 4043189 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4043189A (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 4043189: Extended Washer Thickness: 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN; Head Height: 0.480 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Fastener Length: 1.705 INCHES MINIMUM AND 1.725 INCHES MAXIMUM IN; Extended Washer Diameter: 0.766 INCHES NOMINAL IN. 23 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.