The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-359-9447, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Federal Manufacturing Corp. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-359-9447 |
| Primary Part Number | BACB30LJ4-40 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Federal Manufacturing Corp |
| Status | ACTIVE |
| Head Height | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Fastener Length | 2.874 INCHES MINIMUM AND 2.904 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.389 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Grip Diameter | 0.2479 INCHES MINIMUM AND 0.2485 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| BACB30LJ4-40 | Federal Manufacturing Corp (USA) |
| BACB30LJ4-40 | Howmet Global Fastening Systems Inc (USA) |
| BACB30LJ4-40 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30LJ4-40 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30LJ4-40 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30LJ4-40 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| BACB30LJ4-40 | 5/9 Secondary reference U.S. Government activity |
| BACB30LJ4-40 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| BACB30LJ4-40 | 3/2 Design control — primary reference U.S. Government activity |
| BACB30LJ4-40 | 5/9 Secondary reference Curtiss-Wright Controls Integrated Sensing, Inc. |
| BACB30LJ4-40 | 5/2 Secondary reference U.S. Government activity |
| BACB30LJ4-40 | 5/9 Secondary reference U.S. Government activity |
| BACB30LJ4-40 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-359-9447 is a Bolt,close Tolerance, manufactured by Federal Manufacturing Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-359-9447 has 6 manufacturer part numbers on file: BACB30LJ4-40 (Federal Manufacturing Corp), BACB30LJ4-40 (Howmet Global Fastening Systems Inc), BACB30LJ4-40 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACB30LJ4-40 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30LJ4-40 (Valley-Todeco, Inc. Dba Arconic Fastening Systems) and 1 more.
Key specifications for BACB30LJ4-40: Head Height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Fastener Length: 2.874 INCHES MINIMUM AND 2.904 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.389 INCHES NOMINAL IN. 16 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.