The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-354-7717, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-354-7717 |
| Primary Part Number | AIC518-4-4 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Head Height | 0.100 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Fastener Length | 0.670 INCHES MINIMUM AND 0.680 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-L-8937 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.425 INCHES NOMINAL IN |
| Material Document and Classification | AMS4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | DRY FILM LUBRICANT |
| Head Style | DISHED HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Grip Diameter | 0.2495 INCHES MINIMUM AND 0.2940 INCHES MAXIMUM IN |
| Surface Treatment | DISULFIDE MOLYBDENUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | TITANIUM ALLOY UNS R56400 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 |
|---|---|
| VEH160271-4M4 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 110185-4-M4 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| GB511BY4M4 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| AIC518-4-4 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BM15016-4-4A | Deutsch Co the (USA) |
| Reference | Meaning |
|---|---|
| GB511BY4M4 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
| GB511BY4M4 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-354-7717 is a Bolt,close Tolerance, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-354-7717 has 5 manufacturer part numbers on file: VEH160271-4M4 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), 110185-4-M4 (Sps Technologies, Llc Dba PB Fasteners), GB511BY4M4 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), AIC518-4-4 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BM15016-4-4A (Deutsch Co the).
Key specifications for AIC518-4-4: Head Height: 0.100 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; Fastener Length: 0.670 INCHES MINIMUM AND 0.680 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-L-8937 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.425 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.