The Screw,close Tolerance, cataloged under National Stock Number 5305-00-814-7331, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Leonardo Spa Aeronautics Division - Pomigliano D'arco Site. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-814-7331 |
| Primary Part Number | NAS1202-5 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Leonardo Spa Aeronautics Division - Pomigliano D'arco Site |
| Status | ACTIVE |
| Fastener Length | 0.573 INCHES MINIMUM AND 0.603 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.251 INCHES MINIMUM AND 0.301 INCHES MAXIMUM IN |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1202 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Grip Diameter | 0.1625 INCHES MINIMUM AND 0.1635 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 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 | 32 |
| Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 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 | F |
| Part Number | Manufacturer |
|---|---|
| NAS1202-5 | Leonardo Spa Aeronautics Division - Pomigliano D'arco Site (ITA) |
| NAS1202-5 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| NAS1202-5 | California Screw Products Corp. (USA) |
| NAS1202-5 | Mac Fasteners, Inc. Dba Mac Fasteners Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS1202-5 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1202-5 | 5/9 Secondary reference U.S. Government activity |
| NAS1202-5 | 5/9 Secondary reference Apcom Inc |
| NAS1202-5 | 5/9 Secondary reference Air Industries Co Inc |
| NAS1202-5 | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1202-5 | 5/9 Secondary reference Collins Engineering Corp |
| NAS1202-5 | 5/9 Secondary reference F and C Sales Inc |
| NAS1202-5 | 5/9 Secondary reference Eriks Southwest Inc Dba Montclair Enterprises |
| NAS1202-5 | 5/9 Secondary reference U.S. Government activity |
| NAS1202-5 | 5/9 Secondary reference Nor-Cal Supply Co |
| NAS1202-5 | 5/9 Secondary reference Hi-Shear Corporation |
| NAS1202-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-814-7331 is a Screw,close Tolerance, manufactured by Leonardo Spa Aeronautics Division - Pomigliano D'arco Site, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-814-7331 has 4 manufacturer part numbers on file: NAS1202-5 (Leonardo Spa Aeronautics Division - Pomigliano D'arco Site), NAS1202-5 (Fairchild Fasteners Europe - Vsd Gmbh), NAS1202-5 (California Screw Products Corp.), NAS1202-5 (Mac Fasteners, Inc. Dba Mac Fasteners Inc).
Key specifications for NAS1202-5: Fastener Length: 0.573 INCHES MINIMUM AND 0.603 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.251 INCHES MINIMUM AND 0.301 INCHES MAXIMUM IN; Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL. 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.