The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-478-2960, 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 17 specifications, cited from the U.S. Government catalog. The record lists 17 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-478-2960 |
| Primary Part Number | FIT7047-4-28 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Fastener Innovation Technology, Inc. Dba F I T |
| Status | ACTIVE |
| Head Height | 0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN |
| Fastener Length | 2.132 INCHES MINIMUM AND 2.178 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.397 INCHES NOMINAL IN |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.750 INCHES NOMINAL IN |
| Width Between Flats | 0.491 INCHES MINIMUM IN |
| Grip Diameter | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 5650 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 11825-4-28 | Reid Products Inc. Dba Reid Products Inc (USA) |
| FIT7047-4-28 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| HP5453-4-28 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| SLB252-4-28 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| ST3M453-4-28 | Saturn Fasteners Inc (USA) |
| S11-1060-4-28 PRIMARY | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| GS1016-4-28 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| PBF1253-4-28 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| AIC753-4-28 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| MB61-4-28 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| WC453-4-28 | West Coast Aerospace, Inc. (USA) |
| 109453-4-28 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| VAL23029-4-28 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MB61-4-28 PRIMARY | Hi-Shear Corporation (USA) |
| ST3M453-4-28 | Houston Precision Fasteners I Lp (USA) |
| BM17019-4-28 PRIMARY | Huck International, Inc (USA) |
| VS3204-4-28 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 109453-4-28 | 5/9 Secondary reference Sps Technologies Inc |
| 109453-4-28 | 3/2 Design control — primary reference U.S. Government activity |
| VS3204-4-28 | 5/2 Secondary reference U.S. Government activity |
| ST3M453-4-28 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| KS3020-4-28 | 5/9 Secondary reference Kenaloy Products Inc Sub Masco Corp |
| ST3M453 | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 5306-01-478-2960 is a Bolt,close Tolerance, manufactured by Fastener Innovation Technology, Inc. Dba F I T, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-478-2960 has 17 manufacturer part numbers on file: 11825-4-28 (Reid Products Inc. Dba Reid Products Inc), FIT7047-4-28 (Fastener Innovation Technology, Inc. Dba F I T), HP5453-4-28 (Heartland Precision Fasteners Inc), SLB252-4-28 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), ST3M453-4-28 (Saturn Fasteners Inc) and 12 more.
Key specifications for FIT7047-4-28: Head Height: 0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN; Fastener Length: 2.132 INCHES MINIMUM AND 2.178 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.397 INCHES NOMINAL IN. 17 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.