The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-935-3048, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 23 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-935-3048 |
| Primary Part Number | 6861380 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Fourth Diameter From Head | 0.140 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN |
| Extended Washer Thickness | 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Head Height | 0.260 INCHES NOMINAL IN |
| Fastener Length | 3.060 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.375 INCHES NOMINAL IN |
| Thread Length | 0.780 INCHES MINIMUM IN |
| Material Document and Classification | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.184 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 1.180 INCHES MINIMUM AND 1.220 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 1.330 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Second Diameter From Head | 0.140 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN |
| Width Between Flats | 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.300 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 4 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| Distance From Largest Bearing Surface of Head to End of Fourth Diameter | 2.220 INCHES MINIMUM AND 2.280 INCHES MAXIMUM IN |
| Third Diameter From Head | 0.188 INCHES MINIMUM AND 0.189 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 | X |
| Part Number | Manufacturer |
|---|---|
| 6861380 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
NSN 5306-00-935-3048 is a Bolt,externally Relieved Body, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-935-3048 has 1 manufacturer part number on file: 6861380 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 6861380: Fourth Diameter From Head: 0.140 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN; Extended Washer Thickness: 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN; Head Height: 0.260 INCHES NOMINAL IN; Fastener Length: 3.060 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.