The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-01-147-6729, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Rockwell Collins, Inc. Dba Rc Displays Systems. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-147-6729 |
| Primary Part Number | 32127-1 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rockwell Collins, Inc. Dba Rc Displays Systems |
| Status | ACTIVE |
| Head Height | 0.130 INCHES NOMINAL IN |
| Fastener Length | 1.070 INCHES MINIMUM AND 1.100 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 3 CL 2 FED SPEC SINGLE TREATMENT RESPONSE THREADS |
| Thread Length | 0.210 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Hardness Rating | 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.207 INCHES MINIMUM AND 0.212 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 0.850 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.147 INCHES MINIMUM AND 0.153 INCHES MAXIMUM IN |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.360 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 2 |
| Surface Treatment | PAINT HEAD |
| Surface Treatment | CADMIUM AND CHROMATE THREADS |
| Surface Treatment | PAINT GRIP |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 630 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 |
|---|---|
| 32127-1 PRIMARY | Rockwell Collins, Inc. Dba Rc Displays Systems (USA) |
| Reference | Meaning |
|---|---|
| 32127-1 | 5/9 Secondary reference Pollard Tool and Machine Inc |
NSN 5306-01-147-6729 is a Bolt,externally Relieved Body, manufactured by Rockwell Collins, Inc. Dba Rc Displays Systems, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-147-6729 has 1 manufacturer part number on file: 32127-1 (Rockwell Collins, Inc. Dba Rc Displays Systems).
Key specifications for 32127-1: Head Height: 0.130 INCHES NOMINAL IN; Fastener Length: 1.070 INCHES MINIMUM AND 1.100 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 3 CL 2 FED SPEC SINGLE TREATMENT RESPONSE THREADS; Thread Length: 0.210 INCHES MINIMUM AND 0.250 INCHES MAXIMUM 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.