The Screw,close Tolerance, cataloged under National Stock Number 5305-01-520-9406, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Saturn Fasteners Inc. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-520-9406 |
| Primary Part Number | 120-265V3A4 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Saturn Fasteners Inc |
| Status | ACTIVE |
| Fastener Length | 0.526 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | ALUMINUM PIGMENTED COATING PER NAS4006 FED SPEC 1ST TREATMENT RESPONSE AND CETYL ALCOHOL LUBRICANT PER MIL-L-87132, TYPE 3, GRADE B FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Length | 0.260 INCHES NOMINAL IN |
| Material Document and Classification | 3AL-4VAMS4928 FED SPEC 1ST MATERIAL RESPONSE OR AMS4967 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Spline Major Diameter | 0.189 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.250 INCHES NOMINAL IN |
| Grip Diameter | 0.163 INCHES NOMINAL IN |
| Surface Treatment | ALUMINUM OVERALL |
| Minimum Tensile Strength | 3180 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | TORX |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.380 INCHES NOMINAL 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 |
|---|---|
| 120-265V3A4 | Saturn Fasteners Inc (USA) |
| 120-265V3A4 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 120-265V3A4 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 120-265V3A4 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 120-265V3A4 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 120-265V3A4 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 120-265V3A4 | 3/2 Design control — primary reference U.S. Government activity |
| NAS5315V3A4 | 5/9 Secondary reference U.S. Government activity |
| 120-265 | 1/2 Source control — Government-approved source U.S. Government activity |
| 120-265V3A4 | 5/9 Secondary reference Quanta Systems Corp Dba Data-Control Systems |
NSN 5305-01-520-9406 is a Screw,close Tolerance, manufactured by Saturn Fasteners Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-520-9406 has 6 manufacturer part numbers on file: 120-265V3A4 (Saturn Fasteners Inc), 120-265V3A4 (Sps Technologies, Llc Dba PB Fasteners), 120-265V3A4 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), 120-265V3A4 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 120-265V3A4 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 5330-01-563-3808. Verify interchangeability with system specifications before substitution.
Key specifications for 120-265V3A4: Fastener Length: 0.526 INCHES NOMINAL IN; Surface Treatment Document and Classification: ALUMINUM PIGMENTED COATING PER NAS4006 FED SPEC 1ST TREATMENT RESPONSE AND CETYL ALCOHOL LUBRICANT PER MIL-L-87132, TYPE 3, GRADE B FED SPEC 2ND TREATMENT RESPONSE OVERALL; Thread Length: 0.260 INCHES NOMINAL IN; Material Document and Classification: 3AL-4VAMS4928 FED SPEC 1ST MATERIAL RESPONSE OR AMS4967 FED SPEC 2ND MATERIAL RESPONSE 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.