The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-482-2957, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-00-482-2957 |
| Primary Part Number | NAS1189C4P10L |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Fastener Length | 0.844 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.667 INCHES MINIMUM AND 0.769 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5735 ASSN STD SINGLE 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 | PASSIVATE OVERALL |
| Minimum Tensile Strength | 140000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.442 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 |
|---|---|
| NAS1189C4P10L | Nor-Cal Supply Co (USA) |
| NAS1189C4P10L | Plastic and Metal Products Corporation (USA) |
| NAS1189C4P10L PRIMARY | Hi-Shear Corporation (USA) |
| NAS1189C4P10L PRIMARY | Long-Lok Llc (USA) |
| NAS1189C4P10L PRIMARY | Huck International, Inc (USA) |
| NAS1189C4P10L PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| NAS1189C4P10L PRIMARY | Nd Industries Inc Div Eastern Division (USA) |
| NAS1189C4P10L PRIMARY | Apcom Inc (USA) |
| NAS1189C4P10L | Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc (USA) |
| NAS1189C4P10L PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| Reference | Meaning |
|---|---|
| NAS1189C4P10L | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1189C4P10L | 3/2 Design control — primary reference U.S. Government activity |
| NAS1189C4P10L | 5/9 Secondary reference U.S. Government activity |
| NAS1189C4P10L | 3/2 Design control — primary reference U.S. Government activity |
| NAS1189C4P14L | 3/2 Design control — primary reference U.S. Government activity |
| NAS1189C4P10L | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1189C4P10L | 5/9 Secondary reference F and C Sales Inc |
| NAS1189C4P10L | 5/9 Secondary reference Air Industries Co Inc |
NSN 5305-00-482-2957 is a Screw,cap,socket Head, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-482-2957 has 10 manufacturer part numbers on file: NAS1189C4P10L (Nor-Cal Supply Co), NAS1189C4P10L (Plastic and Metal Products Corporation), NAS1189C4P10L (Hi-Shear Corporation), NAS1189C4P10L (Long-Lok Llc), NAS1189C4P10L (Huck International, Inc) and 5 more.
Key specifications for NAS1189C4P10L: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Fastener Length: 0.844 INCHES MINIMUM AND 0.875 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.