The Screw,close Tolerance, cataloged under National Stock Number 5305-00-816-6281, 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 22 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-816-6281 |
| Primary Part Number | NAS1152C3 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Nor-Cal Supply Co |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Fastener Length | 0.449 INCHES MINIMUM AND 0.479 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 0.276 INCHES MINIMUM IN |
| Hardness Rating | 248.0 BRINELL STANDARD MINIMUM AND 321.0 BRINELL STANDARD MAXIMUM OVERALL |
| Material Document and Classification | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1152 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 0.188 INCHES NOMINAL IN |
| Grip Diameter | 0.1625 INCHES MINIMUM AND 0.1635 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 140000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNJC |
| Head Diameter | 0.280 INCHES MINIMUM AND 0.337 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 |
|---|---|
| NAS1152C3 PRIMARY | Nor-Cal Supply Co (USA) |
| NAS1152C3 PRIMARY | Apcom Inc (USA) |
| NAS1152C3 PRIMARY | Hi-Shear Corporation (USA) |
| NAS1152C3 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| NAS1152C3 PRIMARY | Plastic and Metal Products Corporation (USA) |
| NAS1152C3 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| NAS1152C3 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS1152C3 | 5/9 Secondary reference Air Industries Co Inc |
| NAS1152C3 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1152C3 | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1152C3 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1152C3 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1152C3 | 5/9 Secondary reference U.S. Government activity |
| NAS1152C3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-816-6281 is a Screw,close Tolerance, manufactured by Nor-Cal Supply Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-816-6281 has 7 manufacturer part numbers on file: NAS1152C3 (Nor-Cal Supply Co), NAS1152C3 (Apcom Inc), NAS1152C3 (Hi-Shear Corporation), NAS1152C3 (Fastener Innovation Technology, Inc. Dba F I T), NAS1152C3 (Plastic and Metal Products Corporation) and 2 more.
Key specifications for NAS1152C3: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Fastener Length: 0.449 INCHES MINIMUM AND 0.479 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL. 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.