The Screw,close Tolerance, cataloged under National Stock Number 5305-01-477-5769, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Saturn Fasteners Inc. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-477-5769 |
| Primary Part Number | 3M1170C6-12A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Saturn Fasteners Inc |
| Status | ACTIVE |
| Spline Minor Diameter | 0.1570 INCHES MINIMUM AND 0.1600 INCHES MAXIMUM IN |
| Fastener Length | 1.313 INCHES MINIMUM AND 1.343 INCHES MAXIMUM IN |
| Thread Length | 0.578 INCHES NOMINAL IN |
| Criticality Code Justification | AGAV |
| Material Document and Classification | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spline Major Diameter | 0.2195 INCHES MINIMUM AND 0.2225 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| Grip Diameter | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | TORX |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.524 INCHES MINIMUM AND 0.531 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 | Y |
| Part Number | Manufacturer |
|---|---|
| TX1027C6-12A | Howmet Global Fastening Systems Inc (USA) |
| 3M1170C6-12A | Houston Precision Fasteners I Lp (USA) |
| 3M1170C6-12A PRIMARY | Saturn Fasteners Inc (USA) |
| TX1027C6-12A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| TX1027C6-12A | Huck International, Inc (USA) |
| TX1027C6-12A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| GS1014C6-12A | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| TX1027C6-12A | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3M1170C6-12A PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 11845C6-12A PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M1170C6-12A PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| WC1170C6-12A | West Coast Aerospace, Inc. (USA) |
| TX1027C6-12A PRIMARY | Hi-Shear Corporation (USA) |
| 3M1170C6-12A PRIMARY | Heartland Precision Fasteners Inc (USA) |
| TX1027C6-12A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 3M1170C6-12A PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| TX1027C6-12A | 5/2 Secondary reference U.S. Government activity |
| TX1027C6-12A | 3/2 Design control — primary reference U.S. Government activity |
| 11825C6-12A | 5/9 Secondary reference Reid Products Inc. Dba Reid Products Inc |
NSN 5305-01-477-5769 is a Screw,close Tolerance, manufactured by Saturn Fasteners Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-477-5769 has 16 manufacturer part numbers on file: TX1027C6-12A (Howmet Global Fastening Systems Inc), 3M1170C6-12A (Houston Precision Fasteners I Lp), 3M1170C6-12A (Saturn Fasteners Inc), TX1027C6-12A (Fairchild Fasteners Europe - Vsd Gmbh), TX1027C6-12A (Huck International, Inc) and 11 more.
Key specifications for 3M1170C6-12A: Spline Minor Diameter: 0.1570 INCHES MINIMUM AND 0.1600 INCHES MAXIMUM IN; Fastener Length: 1.313 INCHES MINIMUM AND 1.343 INCHES MAXIMUM IN; Thread Length: 0.578 INCHES NOMINAL IN; Criticality Code Justification: AGAV. 19 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.