The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-191-3121, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Fastener Innovation Technology, Inc. Dba F I T. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 12 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-191-3121 |
| Primary Part Number | ST3M747-10D69 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Fastener Innovation Technology, Inc. Dba F I T |
| Status | ACTIVE |
| Head Height | 0.350 INCHES NOMINAL IN |
| Fastener Length | 5.063 INCHES MINIMUM AND 5.130 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.741 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.141 INCHES MINIMUM AND 0.146 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | SPLINE DRIVE SHEAR HEAD |
| Thread Direction | RIGHT-HAND |
| Grip Length | 4.302 INCHES MINIMUM AND 4.322 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.970 INCHES MINIMUM AND 0.978 INCHES MAXIMUM IN |
| Grip Diameter | 0.6235 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 4.934 INCHES MINIMUM AND 5.011 INCHES MAXIMUM FIRST HOLE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| ST3M747-10D69 | Heartland Precision Fasteners Inc (USA) |
| PBF1266-10D69 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M747-10D69 | Howmet Global Fastening Systems Inc (USA) |
| S397-10D69 | Huck International, Inc (USA) |
| ST3M747-10D69 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| ST3M747-10D69 | Houston Precision Fasteners I Lp (USA) |
| AIC688-10D69 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M747-10D69 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| MB155-10D69 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| VCG0002-10D69 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M747-10D69 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| MB155-10D69 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| S397-10D69 | 5/9 Secondary reference U.S. Government activity |
| VS3191-10D69 | 5/9 Secondary reference U.S. Government activity |
| 122896-10D69 | 5/2 Secondary reference U.S. Government activity |
| ST3M747-10D69 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5306-01-191-3121 is a Bolt,close Tolerance, manufactured by Fastener Innovation Technology, Inc. Dba F I T, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-191-3121 has 12 manufacturer part numbers on file: ST3M747-10D69 (Heartland Precision Fasteners Inc), PBF1266-10D69 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), ST3M747-10D69 (Howmet Global Fastening Systems Inc), S397-10D69 (Huck International, Inc), ST3M747-10D69 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok) and 7 more.
Key specifications for ST3M747-10D69: Head Height: 0.350 INCHES NOMINAL IN; Fastener Length: 5.063 INCHES MINIMUM AND 5.130 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.741 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN. 18 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.