The Screw,close Tolerance, cataloged under National Stock Number 5305-01-587-2262, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 15 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-587-2262 |
| Primary Part Number | ST3M557-5-14 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Fastener Length | 1.406 INCHES NOMINAL IN |
| Thread Length | 0.531 INCHES NOMINAL IN |
| Material Document and Classification | AMS5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.875 INCHES NOMINAL IN |
| Grip Diameter | 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | TORQUE |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.477 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 |
|---|---|
| ST3M557-5-14 PRIMARY | Huck International, Inc (USA) |
| 11923-5-14 | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M557-5-14 | Camcar Llc Div Camcar Llc (USA) |
| ST3M557-5-14 | Houston Precision Fasteners I Lp (USA) |
| ST3M557-5-14 | Heartland Precision Fasteners Inc (USA) |
| ST3M557-5-14 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M557-5-14 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M557-5-14 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M557-5-14 | Saturn Fasteners Inc (USA) |
| ST3M557-5-14 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M557-5-14 | Howmet Global Fastening Systems Inc (USA) |
| ST3M557-5-14 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M557-5-14 | Linread Ltd (GBR) |
| ST3M557-5-14 | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M557-5-14 | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| HT4027-5-14 | 5/9 Secondary reference Huck International, Inc |
| ST3M557-5-14 | 5/2 Secondary reference U.S. Government activity |
| ST3M557-5-14 | 5/2 Secondary reference U.S. Government activity |
| ST3M557-5-14 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HT4027-5-14 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| HT4027-5-14 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
NSN 5305-01-587-2262 is a Screw,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-587-2262 has 15 manufacturer part numbers on file: ST3M557-5-14 (Huck International, Inc), 11923-5-14 (Reid Products Inc. Dba Reid Products Inc), ST3M557-5-14 (Camcar Llc Div Camcar Llc), ST3M557-5-14 (Houston Precision Fasteners I Lp), ST3M557-5-14 (Heartland Precision Fasteners Inc) and 10 more.
Key specifications for ST3M557-5-14: Fastener Length: 1.406 INCHES NOMINAL IN; Thread Length: 0.531 INCHES NOMINAL IN; Material Document and Classification: AMS5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.312 INCHES IN. 16 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.