The Bolt,eye, cataloged under National Stock Number 5306-01-195-4998, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-195-4998 |
| Primary Part Number | 3M977C5-4D6 |
| Item Name | Bolt,eye |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Thread Length | 0.469 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.066 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN |
| Shank Length | 0.834 INCHES MINIMUM AND 0.854 INCHES MAXIMUM IN |
| Style Designator | ROUND, CLOSED W/SHOULDER |
| Material Document and Classification | QQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Distance From Center of Eye to Shank End | 1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Shoulder Thickness | 0.068 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN |
| Distance From Threaded End to Shank Hole Center | 1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM FIRST HOLE IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Eye Inside Diameter | 0.312 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Eye Stock Thickness | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 302 OR STEEL COMP 304 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Eye Outside Width | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM 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 |
|---|---|
| 3M977C5-4D6 PRIMARY | The Boeing Company Div Defense (USA) |
| 3M977C5-4D6 | Unirex, Inc. (USA) |
| 3M977C5-4D6 | Associated Aircraft Supply Co. Llc Dba Associated Aircraft Supply Co Llc (USA) |
NSN 5306-01-195-4998 is a Bolt,eye, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-195-4998 has 3 manufacturer part numbers on file: 3M977C5-4D6 (The Boeing Company Div Defense), 3M977C5-4D6 (Unirex, Inc.), 3M977C5-4D6 (Associated Aircraft Supply Co. Llc Dba Associated Aircraft Supply Co Llc).
Key specifications for 3M977C5-4D6: Thread Length: 0.469 INCHES NOMINAL IN; Shank Unthreaded Hole Diameter: 0.066 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN; Shank Length: 0.834 INCHES MINIMUM AND 0.854 INCHES MAXIMUM IN; Style Designator: ROUND, CLOSED W/SHOULDER. 20 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.