The Screw,close Tolerance, cataloged under National Stock Number 5305-00-453-7478, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Fastener Innovation Technology, Inc. Dba F I T. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 8 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-00-453-7478 |
| Primary Part Number | NAS1133V1 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fastener Innovation Technology, Inc. Dba F I T |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN |
| Fastener Length | 0.323 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN |
| Thread Length | 0.251 INCHES MINIMUM AND 0.301 INCHES MAXIMUM IN |
| Material Document and Classification | NAS621,COMP 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL V |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| 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 | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.357 INCHES MINIMUM AND 0.373 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 |
|---|---|
| NAS1133V1 | Plastic and Metal Products Corporation (USA) |
| NAS1133V1 | Hi-Shear Corporation (USA) |
| NAS1133V1 | Apcom Inc (USA) |
| NAS1133V1 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| NAS1133V1 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| NAS1133V1 | Huck International, Inc (USA) |
| NAS1133V1 | Nor-Cal Supply Co (USA) |
| NAS1133V1 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| NAS1133V1 | 5/2 Secondary reference U.S. Government activity |
| NAS1133V1 | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1133V1 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1133V1 | 5/9 Secondary reference F and C Sales Inc |
| NAS1133V1 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1133V1 | 5/9 Secondary reference Air Industries Co Inc |
| NAS1133V1 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-00-453-7478 is a Screw,close Tolerance, manufactured by Fastener Innovation Technology, Inc. Dba F I T, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-453-7478 has 8 manufacturer part numbers on file: NAS1133V1 (Plastic and Metal Products Corporation), NAS1133V1 (Hi-Shear Corporation), NAS1133V1 (Apcom Inc), NAS1133V1 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), NAS1133V1 (Fastener Innovation Technology, Inc. Dba F I T) and 3 more.
Key specifications for NAS1133V1: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN. 19 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.