The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-027-4553, 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 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 15 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-027-4553 |
| Primary Part Number | NAS1189E4P10 |
| 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 | 125.0 MICROINCHES TOP OF HEAD |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Fastener Length | 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.523 INCHES MINIMUM AND 0.554 INCHES MAXIMUM IN |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 7478 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Specification/standard Data | 80205-NAS1189 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Locking Feature | PATCH OR STRIP THREADS |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Yield Strength | 85000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.491 INCHES MINIMUM AND 0.507 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 |
|---|---|
| NAS1189E4P10 | Nor-Cal Supply Co (USA) |
| NAS1189E4P10 | Boeing Distribution Services SAS (FRA) |
| NAS1189E4P10 PRIMARY | Huck International, Inc (USA) |
| NAS1189E4P10 | Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS1189E4P10 | 5/9 Secondary reference F and C Sales Inc |
| NAS1189E4P10 | 5/9 Secondary reference Nd Industries Inc Div Eastern Division |
| NAS1189E4P10 | 5/9 Secondary reference Plastic and Metal Products Corporation |
| NAS1189E4P10 | 5/9 Secondary reference U.S. Government activity |
| NAS1189E4P10 | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1189E4P10 | 5/9 Secondary reference Fastener Innovation Technology, Inc. Dba F I T |
| NAS1189E4P10 | 5/9 Secondary reference Air Industries Co Inc |
| NAS1189E4P10 | 5/2 Secondary reference U.S. Government activity |
| NAS1189E4P10 | 5/9 Secondary reference U.S. Government activity |
| NAS1189E4P10 | 5/9 Secondary reference Klx Aerospace Solutions II SAS |
| NAS1189E4P10 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1189E4P10 | 5/9 Secondary reference Apcom Inc |
| NAS1189E4P10 | 5/9 Secondary reference Long-Lok Llc |
| NAS1189E4P10 | 5/9 Secondary reference Hi-Shear Corporation |
| BAS1189E4P10 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-027-4553 is a Screw,cap,socket Head, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-027-4553 has 4 manufacturer part numbers on file: NAS1189E4P10 (Nor-Cal Supply Co), NAS1189E4P10 (Boeing Distribution Services SAS), NAS1189E4P10 (Huck International, Inc), NAS1189E4P10 (Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc).
Key specifications for NAS1189E4P10: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 125.0 MICROINCHES TOP OF HEAD; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Fastener Length: 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN. 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.