The Pin,tapered,threaded, cataloged under National Stock Number 5315-01-718-6635, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 18 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-718-6635 |
| Primary Part Number | 3M943E3-3-3 |
| Item Name | Pin,tapered,threaded |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| First End Location | TAPERED END |
| Surface Treatment Document and Classification | AMS 2700, METHOD 1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Second End Taper Angle | 45.0 DEGREES NOMINAL |
| Thread Length | 0.345 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| Style Designator | THREADED AT LARGE END |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Taper Major Diameter | 0.1851 INCHES MINIMUM AND 0.1863 INCHES MAXIMUM IN |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.1900 INCHES IN |
| Specification/standard Data | 76301-3-943 MANUFACTURERS SPECIFICATION |
| Grip Length | 0.1675 INCHES MINIMUM AND 0.2075 INCHES MAXIMUM IN |
| Taper Length | 0.170 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| First End Tip Radius | 0.060 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Second End Style | CHAMFERED |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| 3M943E3-3-3 PRIMARY | The Boeing Company Div Defense (USA) |
| 3M943E3-3-3 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VS3258E3-3-3 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| 3M943E3-3-3 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 3M943E3-3-3 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| 3M943E3-3-3 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 3M943E3-3-3 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3M943E3-3-3 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| D792682E33N3 | Huck International, Inc (USA) |
| 3M943E3-3-3 | Houston Precision Fasteners I Lp (USA) |
| 3M943E3-3-3 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 3M943E3-3-3 | Saturn Fasteners Inc (USA) |
| 3M943E3-3-3 | Heartland Precision Fasteners Inc (USA) |
| 3M943E3-3-3 | Hi-Shear Corporation (USA) |
| 3M943E3-3-3 | G.s. Precision, Inc. (USA) |
| 11415E3-3-3 | Reid Products Inc. Dba Reid Products Inc (USA) |
| WC943E3-3-3 | West Coast Aerospace, Inc. (USA) |
| VS3258E3-3-3 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| VS3258E3-3-3 | 5/2 Secondary reference U.S. Government activity |
| AAP139E3-3-3 | 5/2 Secondary reference U.S. Government activity |
| 3M943E3-3-3 | 5/2 Secondary reference U.S. Government activity |
| 3M943 | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 5315-01-718-6635 is a Pin,tapered,threaded, manufactured by The Boeing Company Div Defense, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-718-6635 has 18 manufacturer part numbers on file: 3M943E3-3-3 (The Boeing Company Div Defense), 3M943E3-3-3 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), VS3258E3-3-3 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), 3M943E3-3-3 (Sps Technologies, Llc Dba PB Fasteners), 3M943E3-3-3 (Sps Technologies Ltd, Tj Brooks Division) and 13 more.
3 possible matches (shared part number, not a government interchangeability claim): 5315-01-718-8406, 5315-01-721-5707, 5315-01-721-5711. Verify interchangeability with system specifications before substitution.
Key specifications for 3M943E3-3-3: First End Location: TAPERED END; Surface Treatment Document and Classification: AMS 2700, METHOD 1 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Second End Taper Angle: 45.0 DEGREES NOMINAL; Thread Length: 0.345 INCHES NOMINAL IN. 21 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.