The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-067-3689, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-067-3689 |
| Primary Part Number | 454388 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Head Height | 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN |
| Fastener Length | 1.180 INCHES MINIMUM AND 1.200 INCHES MAXIMUM IN |
| Distance From Centerline to Flat | 0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN |
| Thread Length | 0.520 INCHES MINIMUM IN |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.246 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.260 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 0.640 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN |
| Head Style | DEE CHAMFER |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.100 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 3 |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 1A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Third Diameter From Head | 0.246 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN |
| Thread Series Designator | UNF |
| Head Diameter | 0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM 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 |
|---|---|
| 454388 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 454388 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 454388 | Acufast Aircraft Products (USA) |
| Reference | Meaning |
|---|---|
| 454388 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-00-067-3689 is a Bolt,externally Relieved Body, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-067-3689 has 3 manufacturer part numbers on file: 454388 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 454388 (Sps Technologies, Llc Dba PB Fasteners), 454388 (Acufast Aircraft Products).
Key specifications for 454388: Head Height: 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN; Fastener Length: 1.180 INCHES MINIMUM AND 1.200 INCHES MAXIMUM IN; Distance From Centerline to Flat: 0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN; Thread Length: 0.520 INCHES MINIMUM IN. 22 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.