The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-004-8712, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Long-Lok Llc. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 10 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-004-8712 |
| Primary Part Number | NAS1189-4P7L |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Long-Lok Llc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Fastener Length | 0.438 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CLB FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 0.438 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 5TH MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 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 | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| 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 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.442 INCHES NOMINAL 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 |
|---|---|
| NAS1189-4P7L | Nor-Cal Supply Co (USA) |
| NAS1189-4P7L PRIMARY | Long-Lok Llc (USA) |
| NAS1189-4P7L PRIMARY | Hi-Shear Corporation (USA) |
| NAS1189-4P7L | Plastic and Metal Products Corporation (USA) |
| NAS1189-4P7L PRIMARY | Nd Industries Inc Div Eastern Division (USA) |
| NAS1189-4P7L PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| NAS1189-4P7L | Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc (USA) |
| NAS1189-4P7L PRIMARY | Huck International, Inc (USA) |
| NAS1189-4P7L PRIMARY | Apcom Inc (USA) |
| NAS1189-4P7L PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| Reference | Meaning |
|---|---|
| NAS1189-4P7L | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1189-4P7L | 5/9 Secondary reference F and C Sales Inc |
| NAS1189-4P7L | 3/2 Design control — primary reference U.S. Government activity |
| NAS1189-4P7L | 3/2 Design control — primary reference U.S. Government activity |
| NAS1189-4P7L | 3/2 Design control — primary reference U.S. Government activity |
| NAS1189-4P7L | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1189-4P7L | 5/9 Secondary reference Air Industries Co Inc |
| NAS1189-4P7L | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-004-8712 is a Screw,cap,socket Head, manufactured by Long-Lok Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-004-8712 has 10 manufacturer part numbers on file: NAS1189-4P7L (Nor-Cal Supply Co), NAS1189-4P7L (Long-Lok Llc), NAS1189-4P7L (Hi-Shear Corporation), NAS1189-4P7L (Plastic and Metal Products Corporation), NAS1189-4P7L (Nd Industries Inc Div Eastern Division) and 5 more.
Key specifications for NAS1189-4P7L: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Fastener Length: 0.438 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CLB FED SPEC ALL TREATMENT RESPONSES 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.