The Screw,close Tolerance, cataloged under National Stock Number 5305-01-508-2154, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Fastener Innovation Technology, Inc. Dba F I T. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-508-2154 |
| Primary Part Number | 3M925C6-11A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fastener Innovation Technology, Inc. Dba F I T |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Head Height | 0.1147 INCHES MINIMUM AND 0.1167 INCHES MAXIMUM IN |
| Fastener Length | 1.079 INCHES MINIMUM AND 1.109 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-83488, TYPE 2, CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.636 INCHES MINIMUM AND 0.646 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT COUNTERSUNK UNDERCUT |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN |
| Grip Diameter | 0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN |
| Surface Treatment | ALUMINUM OVERALL |
| 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 CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.7556 INCHES MINIMUM AND 0.7604 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 |
|---|---|
| 3M925C6-11A PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 11881C6-11A | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M925C6-11A PRIMARY | Heartland Precision Fasteners Inc (USA) |
| HT4067-6-11A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HT4067-6-11A PRIMARY | Huck International, Inc (USA) |
| 3M925C6-11A PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| HT4067-6-11A PRIMARY | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| 3M925C6-11A | Houston Precision Fasteners I Lp (USA) |
| HT4067-6-11A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| WC4067-6-11A | West Coast Aerospace, Inc. (USA) |
| HT4067-6-11A PRIMARY | Hi-Shear Corporation (USA) |
| HT4067-6-11A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 3M925C6-11A | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| HT4067-6-11A | 3/2 Design control — primary reference U.S. Government activity |
| HT4067-6-11A | 5/9 Secondary reference Sps Technologies Inc |
| HT4067-6-11A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-508-2154 is a Screw,close Tolerance, manufactured by Fastener Innovation Technology, Inc. Dba F I T, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-508-2154 has 13 manufacturer part numbers on file: 3M925C6-11A (Fastener Innovation Technology, Inc. Dba F I T), 11881C6-11A (Reid Products Inc. Dba Reid Products Inc), 3M925C6-11A (Heartland Precision Fasteners Inc), HT4067-6-11A (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HT4067-6-11A (Huck International, Inc) and 8 more.
Key specifications for 3M925C6-11A: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Head Height: 0.1147 INCHES MINIMUM AND 0.1167 INCHES MAXIMUM IN; Fastener Length: 1.079 INCHES MINIMUM AND 1.109 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.