The Screw,close Tolerance, cataloged under National Stock Number 5305-01-147-9775, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-147-9775 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Fastener Length | 1.210 INCHES MINIMUM AND 1.257 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | NAS672 ASSN STD 1ST TREATMENT RESPONSE OR MIL-C-8837 TY2 CL2 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Length | 0.325 INCHES MINIMUM AND 0.392 INCHES MAXIMUM IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN |
| Grip Diameter | 0.3108 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OR CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP H11 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.573 INCHES MINIMUM AND 0.635 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 |
| Reference | Meaning |
|---|---|
| BM19045-5A14 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| GB510N5A14 | 3/2 Design control — primary reference U.S. Government activity |
| SFH22D5A14 | 5/9 Secondary reference U.S. Government activity |
| HT8181F5-14 | 5/9 Secondary reference U.S. Government activity |
| GB510N5A14 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
| BM19045-5A14 | 5/9 Secondary reference U.S. Government activity |
| HT326-5A14 | 5/9 Secondary reference Hi-Shear Corporation |
| SFH22D5A14 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5305-01-147-9775 is a Screw,close Tolerance, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-147-9775: Surface Finish: 32.0 MICROINCHES GRIP; Fastener Length: 1.210 INCHES MINIMUM AND 1.257 INCHES MAXIMUM IN; Surface Treatment Document and Classification: NAS672 ASSN STD 1ST TREATMENT RESPONSE OR MIL-C-8837 TY2 CL2 MIL SPEC 2ND TREATMENT RESPONSE OVERALL; Thread Length: 0.325 INCHES MINIMUM AND 0.392 INCHES MAXIMUM IN. 20 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.