The Screw,close Tolerance, cataloged under National Stock Number 5305-01-680-5902, is classified within Federal Supply Class 5305 (Screws) 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-680-5902 |
| Primary Part Number | AIC618-3-8R |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Fastener Length | 0.848 INCHES MINIMUM AND 0.878 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | NAS672 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.363 INCHES NOMINAL IN |
| Material Document and Classification | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.1900 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.500 INCHES NOMINAL IN |
| Grip Diameter | 0.2031 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Internal Drive Style | TORQUE-SET RIBBED |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.258 INCHES MINIMUM AND 0.305 INCHES MAXIMUM IN |
| 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 |
|---|---|
| GS1009-3-8R | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| VT10021-3-8R | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| AIC618-3-8R PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| SF116-3-8R | Saturn Fasteners Inc (USA) |
| 93926-3-8R PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 93926-3-8R | 3/2 Design control — primary reference U.S. Government activity |
| C20645-3-8R | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5305-01-680-5902 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-680-5902 has 5 manufacturer part numbers on file: GS1009-3-8R (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), VT10021-3-8R (Valley-Todeco, Inc. Dba Arconic Fastening Systems), AIC618-3-8R (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), SF116-3-8R (Saturn Fasteners Inc), 93926-3-8R (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for AIC618-3-8R: Fastener Length: 0.848 INCHES MINIMUM AND 0.878 INCHES MAXIMUM IN; Surface Treatment Document and Classification: NAS672 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.363 INCHES NOMINAL IN; Material Document and Classification: AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.