The Screw,close Tolerance, cataloged under National Stock Number 5305-01-669-9393, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-669-9393 |
| Primary Part Number | C7984-4D25 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Fastener Length | 1.9325 INCHES NOMINAL IN |
| Thread Length | 0.370 INCHES NOMINAL IN |
| Material Document and Classification | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.5625 INCHES NOMINAL IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 220000 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 | 28 |
| Material | STEEL COMP H11 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.507 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 |
|---|---|
| C7984-4D25 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| C7984-4D25 | Howmet Global Fastening Systems Inc (USA) |
| C7984-4D25 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| C7984-4D25 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| C7984-4D25 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| C7984-4D25 | 5/2 Secondary reference U.S. Government activity |
| C7984-4D25 | 3/2 Design control — primary reference U.S. Government activity |
| C7984-4D25 | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-669-9393 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-669-9393 has 5 manufacturer part numbers on file: C7984-4D25 (Sps Technologies, Llc Dba PB Fasteners), C7984-4D25 (Howmet Global Fastening Systems Inc), C7984-4D25 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), C7984-4D25 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), C7984-4D25 (Huck International, Inc).
Key specifications for C7984-4D25: Fastener Length: 1.9325 INCHES NOMINAL IN; Thread Length: 0.370 INCHES NOMINAL IN; Material Document and Classification: AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.250 INCHES IN. 17 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.