The Bolt,eccentric Head, cataloged under National Stock Number 5306-01-078-7726, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 12 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 | 5306-01-078-7726 |
| Primary Part Number | 12271903 |
| Item Name | Bolt,eccentric Head |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Fastener Length | 1.000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 TYPE 4 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Distance From Center of Head to Center of Shank | 0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 303SE 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 |
|---|---|
| 12271903 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 5306-01-078-7726 is a Bolt,eccentric Head, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-078-7726 has 1 manufacturer part number on file: 12271903 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 12271903: Fastener Length: 1.000 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 TYPE 4 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Distance From Center of Head to Center of Shank: 0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN; Material Document and Classification: ASTM ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 12 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.