The Bolt,eccentric Head, cataloged under National Stock Number 5306-00-939-9678, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 7 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-939-9678 |
| Primary Part Number | 512542 |
| Item Name | Bolt,eccentric Head |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Head Height | 0.065 INCHES NOMINAL IN |
| Fastener Length | 0.562 INCHES NOMINAL IN |
| Distance From Center of Head to Center of Shank | 0.283 INCHES NOMINAL IN |
| Head Style | ROUND W/WRENCH FLATS |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3A A |
| Head Diameter | 1.006 INCHES NOMINAL 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 |
|---|---|
| 512542 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 512542 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 512542 | 5/2 Secondary reference U.S. Government activity |
| 512542 | C/1 Advisory reference — outside the item-of-supply concept Sps Technologies Inc |
| 512542 | 5/2 Secondary reference U.S. Government activity |
| 512542 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-00-939-9678 is a Bolt,eccentric Head, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-939-9678 has 2 manufacturer part numbers on file: 512542 (Sps Technologies, Llc Dba PB Fasteners), 512542 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 512542: Head Height: 0.065 INCHES NOMINAL IN; Fastener Length: 0.562 INCHES NOMINAL IN; Distance From Center of Head to Center of Shank: 0.283 INCHES NOMINAL IN; Head Style: ROUND W/WRENCH FLATS. 7 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.