The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-064-3587, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-064-3587 |
| Primary Part Number | NAS1190-08P20B |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN |
| Fastener Length | 1.188 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| Thread Length | 1.126 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-8844 MIL SPEC 2ND MATERIAL RESPONSE OR AMS6414 ASSN STD 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE FASTENER |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1190 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Locking Feature | PATCH THREADS |
| Surface Treatment | CADMIUM AND CHROMATE FASTENER |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 FASTENER |
| Material | PLASTIC POLYAMIDE NYLON LOCKING FEATURE |
| Thread Series Designator | UNJC |
| Head Diameter | 0.306 INCHES MINIMUM AND 0.322 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 |
|---|---|
| NAS1190-08P20B | Apcom Inc (USA) |
| NAS1190-08P20B | Nd Industries Inc Div Eastern Division (USA) |
| NAS1190-08P20B | Long-Lok Llc (USA) |
| NAS1190-08P20B | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| NAS1190-08P20B | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| NAS1190-08P20B | Nor-Cal Supply Co (USA) |
| NAS1190-08P20B PRIMARY | Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc (USA) |
| NAS1190-08P20B | Hi-Shear Corporation (USA) |
| NAS1190-08P20B | Plastic and Metal Products Corporation (USA) |
| Reference | Meaning |
|---|---|
| NAS1190-08P20B | 3/9 Design control — primary reference Air Industries Co Inc |
| NAS1190-08P20B | 5/9 Secondary reference Klx Aerospace Solutions II SAS |
| NAS1190-08P20B | 5/2 Secondary reference U.S. Government activity |
| NAS1190-08P20B | 5/2 Secondary reference U.S. Government activity |
| NAS1190-08P20B | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1190-08P20B | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1190-08P20B | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| NAS1190-08P20B | 5/9 Secondary reference F and C Sales Inc |
| NAS1190-08P20B | 5/9 Secondary reference U.S. Government activity |
| NAS1190-08P20B | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-064-3587 is a Screw,cap,socket Head, manufactured by Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-064-3587 has 9 manufacturer part numbers on file: NAS1190-08P20B (Apcom Inc), NAS1190-08P20B (Nd Industries Inc Div Eastern Division), NAS1190-08P20B (Long-Lok Llc), NAS1190-08P20B (Fastener Innovation Technology, Inc. Dba F I T), NAS1190-08P20B (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 4 more.
Key specifications for NAS1190-08P20B: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN; Fastener Length: 1.188 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN. 22 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.