The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-124-3628, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Nor-Cal Supply Co. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 11 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-124-3628 |
| Primary Part Number | NAS1191-3T5 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Nor-Cal Supply Co |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN |
| Fastener Length | 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.219 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1191 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Locking Feature | PELLET OR STRIP OR PATCH THREADS |
| Surface Treatment | 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 | 32 |
| Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.306 INCHES MINIMUM AND 0.313 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 |
|---|---|
| NAS1191-3T5 | Nor-Cal Supply Co (USA) |
| NAS1191-3T5 | Apcom Inc (USA) |
| NAS1191-3T5 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| NAS1191-3T5 | Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc (USA) |
| NAS1191-3T5 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| NAS1191-3T5 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| NAS1191-3T5 | Long-Lok Llc (USA) |
| NAS1191-3T5 | Hi-Shear Corporation (USA) |
| NAS1191-3T5 | Plastic and Metal Products Corporation (USA) |
| NAS1191-3T5 | Huck International, Inc (USA) |
| NAS1191-3T5 | Nd Industries Inc Div Eastern Division (USA) |
| Reference | Meaning |
|---|---|
| NAS1191-3T5 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1191-3T5 | 5/9 Secondary reference U.S. Government activity |
| NAS1191-3T5 | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1191-3T5 | 5/9 Secondary reference Air Industries Co Inc |
NSN 5305-01-124-3628 is a Screw,cap,socket Head, manufactured by Nor-Cal Supply Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-124-3628 has 11 manufacturer part numbers on file: NAS1191-3T5 (Nor-Cal Supply Co), NAS1191-3T5 (Apcom Inc), NAS1191-3T5 (Fastener Innovation Technology, Inc. Dba F I T), NAS1191-3T5 (Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc), NAS1191-3T5 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 6 more.
Key specifications for NAS1191-3T5: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN; Fastener Length: 0.281 INCHES MINIMUM AND 0.312 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.