The Screw,close Tolerance, cataloged under National Stock Number 5305-01-706-7750, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 21 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-706-7750 |
| Primary Part Number | H185B3-11R |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.012 INCHES NOMINAL IN |
| Fastener Length | 1.0505 INCHES MINIMUM IN |
| Surface Treatment Document and Classification | MIL-C-83488 TYPE II,CLASS 3 MIL SPEC 1ST TREATMENT RESPONSE OVERALL |
| Thread Length | 0.363 INCHES NOMINAL IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Features Provided | DRY FILM LUBRICANT |
| Head Style | FILLISTER COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.6875 INCHES NOMINAL IN |
| Grip Diameter | 0.7031 INCHES NOMINAL IN |
| Surface Treatment | ALUMINUM AND LUBRICANT OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP H11 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 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 |
|---|---|
| H185B3-11R PRIMARY | Huck International, Inc (USA) |
| AIC985B3-11R | Boeing Distribution Services, Inc. (USA) |
| VT1694AS3-11X | Howmet Global Fastening Systems Inc (USA) |
| 121558-3-A11BX | Sps Technologies, Llc Dba PB Fasteners (USA) |
| AIC985B3-11R PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| C7985B3-11R | 7/2 Vendor item drawing reference U.S. Government activity |
| 121558-3-A11BX | 3/2 Design control — primary reference U.S. Government activity |
| VT1694AS3-11X | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-706-7750 is a Screw,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-706-7750 has 5 manufacturer part numbers on file: H185B3-11R (Huck International, Inc), AIC985B3-11R (Boeing Distribution Services, Inc.), VT1694AS3-11X (Howmet Global Fastening Systems Inc), 121558-3-A11BX (Sps Technologies, Llc Dba PB Fasteners), AIC985B3-11R (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company).
Key specifications for H185B3-11R: Head Height: 0.012 INCHES NOMINAL IN; Fastener Length: 1.0505 INCHES MINIMUM IN; Surface Treatment Document and Classification: MIL-C-83488 TYPE II,CLASS 3 MIL SPEC 1ST TREATMENT RESPONSE OVERALL; Thread Length: 0.363 INCHES NOMINAL IN. 21 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.