The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-177-9731, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Ge Aviation Systems Llc. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-177-9731 |
| Primary Part Number | 104779627 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Ge Aviation Systems Llc |
| Status | ACTIVE |
| Head Height | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Fastener Length | 0.800 INCHES NOMINAL IN |
| Thread Length | 0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN |
| Hole Configuration Style | HEXAGON LONGITUDINAL HOLE |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.440 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Grip Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP E4340 OVERALL |
| Hole Quantity | 4 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 1.05 MILLIMETERS MINIMUM AND 1.18 MILLIMETERS MAXIMUM MM |
| 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 |
|---|---|
| 104779627 | Triumph Aerospace Operations Uk, Ltd. Div Staverton Site (GBR) |
| 104779627 | Ge Aviation Systems Ltd (GBR) |
| 104779627 PRIMARY | Ge Aviation Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| 104779627 | 3/9 Design control — primary reference Ge Aviation Systems Llc Dba Ge Aviation |
| 104779627 | 5/9 Secondary reference Safran Landing Systems Uk Ltd Div Safran Landing Systems Uk |
NSN 5306-01-177-9731 is a Bolt,close Tolerance, manufactured by Ge Aviation Systems Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-177-9731 has 3 manufacturer part numbers on file: 104779627 (Triumph Aerospace Operations Uk, Ltd. Div Staverton Site), 104779627 (Ge Aviation Systems Ltd), 104779627 (Ge Aviation Systems Llc).
Key specifications for 104779627: Head Height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Fastener Length: 0.800 INCHES NOMINAL IN; Thread Length: 0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN; Hole Configuration Style: HEXAGON LONGITUDINAL HOLE. 19 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.