The Screw,close Tolerance, cataloged under National Stock Number 5305-01-511-6976, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 19 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-511-6976 |
| Primary Part Number | 3M1170D3-26A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Spline Minor Diameter | 0.1105 INCHES MINIMUM AND 0.1125 INCHES MAXIMUM IN |
| Fastener Length | 1.955 INCHES MINIMUM AND 1.985 INCHES MAXIMUM IN |
| Thread Length | 0.345 INCHES NOMINAL IN |
| Criticality Code Justification | AGAV |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spline Major Diameter | 0.1540 INCHES MINIMUM AND 0.1560 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 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 | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.265 INCHES MINIMUM AND 0.272 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 |
|---|---|
| TX1027D3-26A | Hi-Shear Corporation (USA) |
| TX1027D3-26A | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| HP1170D3-26 | Heartland Precision Fasteners Inc (USA) |
| 3M1170D3-26A PRIMARY | The Boeing Company Div Defense (USA) |
| TX1027D3-26A | Howmet Global Fastening Systems Inc (USA) |
| 11845D3-26A PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX1027D3-26A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| TX1027D3-26A | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| GS1014D3-26A PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| TX1027D3-26A | Sps Technologies, Llc Dba PB Fasteners (USA) |
| TX1027D3-26A PRIMARY | Huck International, Inc (USA) |
| TX1027D3-26A | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| WC1170D3-26A | West Coast Aerospace, Inc. (USA) |
| 3M1170D3-26A | Houston Precision Fasteners I Lp (USA) |
| 3M1170D3-26A PRIMARY | Saturn Fasteners Inc (USA) |
| 3M1170D3-26A PRIMARY | Heartland Precision Fasteners Inc (USA) |
| 3M1170D3-26A PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 3M1170D3-26A PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 11825D3-26A | Reid Products Inc. Dba Reid Products Inc (USA) |
| Reference | Meaning |
|---|---|
| TX1027D3-26A | 5/9 Secondary reference Sps Technologies Inc |
| TX1027D3-26A | 5/2 Secondary reference U.S. Government activity |
| TX1027D3-26A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-511-6976 is a Screw,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-511-6976 has 19 manufacturer part numbers on file: TX1027D3-26A (Hi-Shear Corporation), TX1027D3-26A (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), HP1170D3-26 (Heartland Precision Fasteners Inc), 3M1170D3-26A (The Boeing Company Div Defense), TX1027D3-26A (Howmet Global Fastening Systems Inc) and 14 more.
Key specifications for 3M1170D3-26A: Spline Minor Diameter: 0.1105 INCHES MINIMUM AND 0.1125 INCHES MAXIMUM IN; Fastener Length: 1.955 INCHES MINIMUM AND 1.985 INCHES MAXIMUM IN; Thread Length: 0.345 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.