The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-347-6377, 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 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-347-6377 |
| Primary Part Number | ST3M735-4-29 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.126 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN |
| Fastener Length | 2.231 INCHES MINIMUM AND 2.251 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | OO-P-35 ASSN STD SINGLE TREATMENT RESPONSE RING |
| Surface Treatment Document and Classification | QQ-P-416,TYPE II,CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE FASTENER |
| Thread Length | 0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Hole Configuration Style | HEXAGON CORNERS |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.812 INCHES MINIMUM AND 1.828 INCHES MAXIMUM IN |
| Width Between Flats | 0.488 INCHES NOMINAL IN |
| Grip Diameter | 0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN |
| Locking Feature | DETENT RING THREADS |
| Surface Treatment | PASSIVATE RING |
| Surface Treatment | CADMIUM FASTENER |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL OVERALL |
| Hole Quantity | 3 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.046 INCHES MINIMUM AND 0.056 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 |
|---|---|
| ST3M735-4-29 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 121673-4-29 | 5/2 Secondary reference U.S. Government activity |
| 11829-4-29 | 5/9 Secondary reference Reid Products Inc. Dba Reid Products Inc |
NSN 5306-01-347-6377 is a Bolt,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-347-6377 has 1 manufacturer part number on file: ST3M735-4-29 (The Boeing Company Div Defense).
Key specifications for ST3M735-4-29: Head Height: 0.126 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN; Fastener Length: 2.231 INCHES MINIMUM AND 2.251 INCHES MAXIMUM IN; Surface Treatment Document and Classification: OO-P-35 ASSN STD SINGLE TREATMENT RESPONSE RING; Surface Treatment Document and Classification: QQ-P-416,TYPE II,CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE FASTENER. 22 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.