The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-044-6551, 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 20 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 16 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-044-6551 |
| Primary Part Number | NAS1189E3T18L |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Fastener Length | 0.063 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.921 INCHES MINIMUM AND 1.045 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1189 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Locking Feature | STRIP THREADS |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.322 INCHES MINIMUM AND 0.385 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 |
|---|---|
| NAS1189E3T18L | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| NAS1189E3T18L PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS1189E3T18L | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1189E3T18L | 5/9 Secondary reference Hi-Shear Corporation |
| NAS1189E3T18L | 5/9 Secondary reference F and C Sales Inc |
| NAS1189E3T18L | 5/9 Secondary reference Nd Industries Inc Div Eastern Division |
| NAS1189E3T18L | 5/9 Secondary reference Air Industries Co Inc |
| NAS1189E3T18L | 5/9 Secondary reference Fastener Innovation Technology, Inc. Dba F I T |
| NAS1189E3T18L | 5/9 Secondary reference U.S. Government activity |
| NAS1189E3T18L | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1189E3T18L | 3/2 Design control — primary reference U.S. Government activity |
| NAS1189E3T18L | 5/9 Secondary reference Apcom Inc |
| NAS1189E3T18L | 5/9 Secondary reference U.S. Government activity |
| NAS1189E3T18L | 5/9 Secondary reference Plastic and Metal Products Corporation |
| NAS1189E3T18L | 5/9 Secondary reference U.S. Government activity |
| NAS1189E3T18L | 5/9 Secondary reference Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc |
| NAS1189E3T18L | 5/9 Secondary reference Nor-Cal Supply Co |
| NAS1189E3T18L | 5/9 Secondary reference Long-Lok Llc |
NSN 5305-01-044-6551 is a Screw,cap,socket Head, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-044-6551 has 2 manufacturer part numbers on file: NAS1189E3T18L (Fairchild Fasteners Europe - Vsd Gmbh), NAS1189E3T18L (Huck International, Inc).
Key specifications for NAS1189E3T18L: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Fastener Length: 0.063 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 20 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.