The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-00-678-1887, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-678-1887 |
| Primary Part Number | 8724979 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Fourth Diameter From Head | 0.494 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN |
| Fastener Length | 4.250 INCHES NOMINAL IN |
| Thread Length | 0.500 INCHES MINIMUM IN |
| First Diameter From Head | 0.860 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of Second Diameter | 2.000 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Distance From Largest Bearing Surface of Head to End of Third Diameter | 2.910 INCHES NOMINAL IN |
| Second Diameter From Head | 0.860 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.880 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Third Diameter From Head | 0.860 INCHES NOMINAL IN |
| 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 |
|---|---|
| 582464 | Renk America Llc Div Renk America (USA) |
| 8724979 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| CS-2300-0001 | D/9 Drawing number reference only Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| 5306006781887 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 5306-00-678-1887 is a Bolt,externally Relieved Body, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-678-1887 has 2 manufacturer part numbers on file: 582464 (Renk America Llc Div Renk America), 8724979 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8724979: Fourth Diameter From Head: 0.494 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN; Fastener Length: 4.250 INCHES NOMINAL IN; Thread Length: 0.500 INCHES MINIMUM IN; First Diameter From Head: 0.860 INCHES NOMINAL IN. 13 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.