The Screw,close Tolerance, cataloged under National Stock Number 5305-00-486-2192, 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 22 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 14 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-486-2192 |
| Primary Part Number | NAS1124-7H |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.133 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Fastener Length | 0.739 INCHES MINIMUM AND 0.769 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS2403 ASSN STD 1ST TREATMENT RESPONSE AND QQ-P-416,TY 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Length | 0.291 INCHES MINIMUM AND 0.341 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL AND CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 6150 OR STEEL COMP 8735 OR STEEL COMP 8740 OR STEEL COMP 4037 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Diameter | 0.064 INCHES NOMINAL IN |
| Head Diameter | 0.365 INCHES MINIMUM AND 0.375 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 |
|---|---|
| NAS1124-7H PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS1124-7H | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1124-7H | 5/9 Secondary reference Hi-Shear Corporation |
| NAS1124-7H | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1124-7H | 5/9 Secondary reference Nor-Cal Supply Co |
| NAS1124-7H | 5/9 Secondary reference Apcom Inc |
| NAS1124-7H | 5/9 Secondary reference F and C Sales Inc |
| NAS1124-7H | 5/9 Secondary reference U.S. Government activity |
| NAS1124-7H | 5/9 Secondary reference U.S. Government activity |
| NAS1124-7H | 5/9 Secondary reference Plastic and Metal Products Corporation |
| NAS1124-7H | 5/9 Secondary reference Qualified Air Components Inc. |
| NAS1124-7H | 5/9 Secondary reference Fastener Innovation Technology, Inc. Dba F I T |
| NAS1124-7H | 5/9 Secondary reference U.S. Government activity |
| NAS1124-7H | 5/9 Secondary reference Air Industries Co Inc |
| NAS1124-7H | 3/9 Design control — primary reference U.S. Government activity |
NSN 5305-00-486-2192 is a Screw,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-486-2192 has 1 manufacturer part number on file: NAS1124-7H (Huck International, Inc).
Key specifications for NAS1124-7H: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.133 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN. 22 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.