The Screw,close Tolerance, cataloged under National Stock Number 5305-01-082-8243, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-082-8243 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Fastener Length | 0.685 INCHES MINIMUM AND 0.705 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.263 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | CROWNED HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.312 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Grip Diameter | 0.1889 INCHES MINIMUM AND 0.1894 INCHES MAXIMUM IN |
| Locking Feature | DETENT BALL GRIP |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 63000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | SLOT |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.595 INCHES MINIMUM AND 0.615 INCHES MAXIMUM FIRST HOLE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AS169-3-05 | 5/9 Secondary reference U.S. Government activity |
| CA2658-3-05 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Tridair Products |
| NASM3369B305 | 3/2 Design control — primary reference U.S. Government activity |
| NASM23964 | 7/1 Vendor item drawing reference U.S. Government activity |
NSN 5305-01-082-8243 is a Screw,close Tolerance, classified under FSC 5305, Screws. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5305-01-186-3098. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-01-082-8243: Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; Fastener Length: 0.685 INCHES MINIMUM AND 0.705 INCHES MAXIMUM IN. 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.