The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-413-5517, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 9 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-413-5517 |
| Primary Part Number | BACB30LE7K27X |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Extended Washer Thickness | 0.089 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN |
| Head Height | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Fastener Length | 2.405 INCHES MINIMUM AND 2.435 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | BMS10-85 TY 1 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Thread Length | 0.733 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.4375 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.6775 INCHES MINIMUM AND 1.6975 INCHES MAXIMUM IN |
| Width Between Flats | 0.561 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN |
| Grip Diameter | 0.4512 INCHES MINIMUM IN |
| Surface Treatment | ALUMINUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| 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 |
|---|---|
| BACB30LE7K27X | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30LE7K27X | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| BACB30LE7K27X | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| BACB30LE7K27X | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30LE7K27X | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| BACB30LE7K27X | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30LE7K27X | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30LE7K27X | Federal Manufacturing Corp (USA) |
| BACB30LE7K27X | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| Reference | Meaning |
|---|---|
| BACB30LE7K27X | 3/9 Design control — primary reference Voi-Shan/chatsworth Div of Vsi Corp Sub of Fairchild Industries Inc |
| BACB30LE7K27X | 3/2 Design control — primary reference U.S. Government activity |
| BACB30LE7K27X | 5/2 Secondary reference U.S. Government activity |
| BACB30LE7K27X | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-413-5517 is a Bolt,close Tolerance, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-413-5517 has 9 manufacturer part numbers on file: BACB30LE7K27X (Sps Technologies, Llc Dba PB Fasteners), BACB30LE7K27X (Howmet Global Fastening Systems Inc Div City of Industry Operations), BACB30LE7K27X (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), BACB30LE7K27X (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30LE7K27X (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok) and 4 more.
Key specifications for BACB30LE7K27X: Extended Washer Thickness: 0.089 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN; Head Height: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Fastener Length: 2.405 INCHES MINIMUM AND 2.435 INCHES MAXIMUM IN; Surface Treatment Document and Classification: BMS10-85 TY 1 MFR REF SINGLE TREATMENT RESPONSE OVERALL. 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.